Boundary - KYOKAI -
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Expert Advisors
MetaTrader 5
Sales from
10/19/2026
Last Updated At
9/22/2026
Version
1.00
My Profile
RITSU｜EA開発- Whole period
- 2 years
- 1 year
- 6 months
- 3 months
- 1 month
Profit
:
47,301JPYProfit Factor
:
3.62Rate of return risk
?
:
2.06Average Profit
:
32,547JPYAverage Loss
:
-17,976JPYBalance
?
:
1,047,301JPYRate of return (all periods) ?
:
10.09%Win Rate
:
66.67%
(2/3)
Maximum Position
?
:
2Maximum Drawdown
?
:
4.31%
(23,017JPY)
Maximum Profit
:
32,596JPYMaximum Loss
:
-17,976JPYRecommended Margin
?
:
468,875JPYUnrealized P/L
:
27,274JPYDeposit
?
:
1,000,000JPYCurrency
:
JPY- Account
Operable Brokers
Usable with MT5-adopting brokers.
Forward testing (Profit)
Product Statistics
Product Comments
Monthly Statistics
2026
2025
2024
2023
2022
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Calendar for Months
About EA's Strategy
Translating...
Currency Pairs
[EUR/USD]
Trading Style
[Swing Trading]
[Day Trading]
Maximum Number Position
100
Maximum Lot
10
Chart Time Frame
M15
Maximum Stop Loss
0
Take Profit
0
Straddle Trading
Yes
Application Type
Metatrader Auto Trading
Other File Usages
No
Boundary - KYOKAI -
EURUSD Only ｜ MT5 ｜ M15
No averaging down. Stop loss on all entries.
Aiming for the first contact with the horizontal line,
and then following the price movement, EURUSD only EA.
and then following the price movement, EURUSD only EA.
EURUSD M15 ｜ Backtest Results
January 2023 - August 2026 (about 3 years 8 months)
Net profit (historical testing)
+3,520,897 Yen
PF
1.52
Number of trades
418 cases
Max drawdown balance
12.11%
Initial margin 1,000,000 yen ｜ Fixed 0.5 lot ｜ Realistic testing
※This is a simulation based on historical data and does not guarantee future performance.
※This is a simulation based on historical data and does not guarantee future performance.
Release Launch Price
First 10 copies limited:29,800 yen(current price)
From 11th copy onward:39,800 yen(planned)
From 11th copy onward:39,800 yen(planned)
Boundary - KYOKAI -targets EURUSD,
an automated trading EA that captures reactions to horizontal lines formed in the market.
Focus on the moment when price first reaches the horizontal line, and assess the market environment from multiple conditions.
When conditions align, aim for a reversal, and after entry follow the price movement to capture profit.
※EA does not guarantee profit. Please check the “Recommended environment and precautions” at the end for details.
01｜Horizontal line × First Touch
The core of KYOKAI is a simplehorizontal linethat is formed automatically by the market.
We monitor the moment the price first reaches that line.
“Enter only when touched by the horizontal line” is not guaranteed.
In addition to contact with the horizontal line, multiple conditions such as price movement at that time and trend environment are checked.
Only when all conditions are met, we consider it a candidate for entry.
KYOKAI ENTRY LOGIC
Form the horizontal line
↓
Wait for First Touch
↓
Judge market environment
↓
Enter in the reversal direction when conditions are met
02｜Four “Boundaries”
KYOKAI holds multiple horizontal lines formed from the market.
4 BOUNDARIES
Resistance × 2
PRICE
Support × 2
Total of 4 “boundaries”
Not only newly formed lines but also horizontal lines that remain from the past are treated as market “boundaries.”
Contact with ResistanceSELL direction, contact with SupportBUY direction reactions are monitored.
Additionally, check the market environment in higher timeframes and restrict entries deemed disadvantageous.
MT5 chart image when reflected (R2/R1/S1/S2 four lines)
03｜Not bound by fixed pips, trailing stops and profits
Many EAs use a pre-set stop loss or take profit width.
KYOKAI adjusts the stop loss width and trailing profit width based on the currentvolatility.
VOLATILITY ADAPTIVE
Markets with low movement
narrow the width
Markets with high movement
widen the width
Even as market conditions change, we do not always respond with the same pip width;we adapt to the price movement at that time.
Profit-taking is not a fixed method like ending at “○ pips.”
After profits move beyond a certain level, we trail the price movement and, when a reversal is caught and the trend continues,protect profits while aiming for further upside.
Trade image
MT5 trade image
Set a stop loss on all entries.
Rather than averaging down with martingale, each entry has a withdrawal line appropriate to the current volatility.
Rather than averaging down with martingale, each entry has a withdrawal line appropriate to the current volatility.
04｜Backtest
KYOKAI tests not only for a short period but across multi-year markets.
BACKTEST RESULT
EURUSD M15 ｜ 2023-01 to 2026-08
History quality 99% (realistic)
Net profit
+3,520,897 yen
PF 1.52 | Win rate 57.66% | Trades 418 | Max DD (Balance / Margin) 12.11% / 14% |
Annual profit factor (reference)
2023 1.77 | 2024 1.24 | 2025 1.62 | 2026 1.25 |
Initial margin 1,000,000 yen ｜ 0.5 lot fixed ｜ Leverage 1:200
Backtesting is conducted on realistic tick data.
Yearly figures are references to understand behavior of the logic. 2026 covers up to the end of August.
Funds and LOT validation results
As a guideline for operation according to capital, results with the same period and conditions but with different funds and LOT are also shown.
| Initial margin | LOT | Net profit | PF | Max DD (Balance) | Max DD (Margin) |
|---|---|---|---|---|---|
| 200,000 | 0.1 lot | +620,340 yen | 1.52 | 12.11% | 14% |
| 500,000 | 0.25 lot | +1,550,863 yen | 1.52 | 12.11% | 14% |
| 1,000,000 | 0.5 lot | +3,520,897 yen | 1.52 | 12.11% | 14% |
Validation conditions: EURUSD M15 ｜ 2023-01 to 2026-08 ｜ Realistic ｜ Leverage 1:200 ｜ Fixed LOT
MT5 Strategy Tester actual results
※Backtesting is a simulation using past data and does not guarantee future performance.
Results may differ from actual trading due to spreads, execution environment, and trading conditions.
Results may differ from actual trading due to spreads, execution environment, and trading conditions.
05｜Risk Management
KYOKAI does not adopt martingale logic that adds positions and adjusts average entry price according to drawdown.
All entries have a stop loss, and an exit line based on current volatility (see 03).
※There may be cases where multiple positions are held due to trading conditions. This means “no averaging,” and it does not always hold just one position.
06｜Simple LOT and capital management
KYOKAI allows you to choose betweenFixed LOT and Balance-linked LOTdepending on your operating style.
LOT MANAGEMENT
BALANCE LINK
OFF
Operate with fixed LOT
BALANCE LINK
ON
Automatically adjust LOT according to account balance
As capital increases, LOT increases stepwise; when capital decreases, LOT is reduced to fit the account size.
Reference: Initial 200,000 and Balance Link ON
This is a validation example with a setting where LOT changes according to balance, not a fixed LOT.
| Item | Content |
|---|---|
| Initial margin | 200,000 yen |
| LOT setting | Balance Link ON (start around 0.1 lot) |
| Net profit | +1,818,400 yen |
| Profit factor | 1.28 |
| Trades | 418 |
| Max DD (Balance) | 50.31% (1,131,133 yen) |
| Max DD (Margin) | 50.32% (1,161,209 yen) |
Validation conditions: EURUSD M15 ｜ 2023-01 to 2026-08 ｜ Realistic
As LOT increases, not only profits but losses and drawdown also increase.
In actual operation, set according to your acceptable risk.
07｜KYOKAI as an EA
KYOKAI PHILOSOPHY
Wait for the horizontal line.
Capture the first reaction.
In rising markets, chase beyond.
Focusing on EURUSD and automating a simple concept as an EA,Boundary - KYOKAI -is born.
Who it suits and who it does not
Suitable for
- People who want to automate reactions to horizontal lines with EA
- People seeking an EA with stop loss on all entries without averaging down
- People who want to operate focused on EURUSD
Not suitable for
- People who want to trade many times every day
- People who want to operate multiple currencies with one EA
- People seeking high win rate via averaging down
Recommended environment and precautions
RECOMMENDED ENVIRONMENT
PLATFORMMetaTrader 5
SYMBOLEURUSD (special design)
TIMEFRAMEM15
OPERATIONVPS recommended
Recommended margin200,000 yen or more
LOT guideline0.1 Lot per 200,000
KYOKAI is an EURUSD-only EA. Use on other currency pairs is not recommended.
When operating, set on EURUSD chart.
Frequently Asked Questions
Q. Why are there multiple positions even though there is no averaging down?
There may be multiple positions depending on trading conditions. We do not add positions due to unrealized losses.
Q. Can it be used for currencies other than EURUSD?
Since it is designed and tested as EURUSD-only, using it on other currencies is not recommended.
Q. What should I do before actual operation?
Test on a demo account to confirm operation, then use within your own acceptable risk.
In markets with unusual conditions such as major news, important speeches, or sudden spread widening, price movements may differ greatly from backtests.
EA does not guarantee profit.
Before actual operation, test on a demo account to confirm operation, and use within your own acceptable risk.
Before actual operation, test on a demo account to confirm operation, and use within your own acceptable risk.
EURUSD TRADING SYSTEM
Prices react to “boundaries.”
Boundary - KYOKAI -
Sales from
:
10/19/2026 04:53
Purchased
:
0
times
Price: $189.27 (taxed)
￥29,800(taxed)
Provider/Distributor:
Sales site:
GogoJungle
●Payment
Forward Test
Back Test
Sales from : 10/19/2026 04:53
Purchased
:
0
times
Price: $189.27 (taxed)
￥29,800(taxed)
Provider/Distributor:
Sales site:
GogoJungle
●Payment
About Forex Automated Trading
What is Forex Automated Trading (MT4 EA)?
Forex Automated Trading refers to trading that is automated through programming, incorporating predetermined trading and settlement rules. There are various methods to conduct automated trading, but at GogoJungle, we deal with Experts Advisors (hereinafter referred to as EA) that operate on a trading platform called MT4.
Trading Types of Forex Automated Trading
There are various types of EAs (Expert Advisors) for different trading types that can be used on MT4.
Just like discretionary trading, there are those that decide trading and settlement timings by combining indicators, those that repeatedly buy or sell at certain price (pips) intervals, and trading methods that utilize market anomalies or temporal features. The variety is as rich as the methods in discretionary trading.
To categorize simply,
・Scalping (Type where trades are completed within a few minutes to a few hours),
・Day Trading (Type where trades are completed within several hours to about a day),
・Swing Trading (Type where trades are conducted over a relatively long period of about 1 day to 1 week)
・Grid/Martingale Trading (Holding multiple positions at equal or unequal intervals and settling all once a profit is made. Those that gradually increase the lot number are called Martingale.)
・Anomaly EA (Mid-price trading, early morning scalping)
Just like discretionary trading, there are those that decide trading and settlement timings by combining indicators, those that repeatedly buy or sell at certain price (pips) intervals, and trading methods that utilize market anomalies or temporal features. The variety is as rich as the methods in discretionary trading.
To categorize simply,
・Scalping (Type where trades are completed within a few minutes to a few hours),
・Day Trading (Type where trades are completed within several hours to about a day),
・Swing Trading (Type where trades are conducted over a relatively long period of about 1 day to 1 week)
・Grid/Martingale Trading (Holding multiple positions at equal or unequal intervals and settling all once a profit is made. Those that gradually increase the lot number are called Martingale.)
・Anomaly EA (Mid-price trading, early morning scalping)
Risks, Advantages, and Disadvantages of Forex Automated Trading
When engaging in Forex, there are risks in automated trading just as there are in discretionary trading.
However, a substantial advantage of automated trading is its ability to limit and predict risks beforehand.
[Risk]
Inherent to forex trading are the trading risks that undeniably exist in automated trading as well.
・Lot Size Risk
Increasing the lot size forcibly due to a high winning rate can, in rare instances, depending on the EA, lead to substantial Pips loss when a loss occurs. It is crucial to verify the SL Pips and the number of positions held before operating with an appropriate lot.
・Rapid Market Fluctuation Risk
There are instances where market prices fluctuate rapidly due to index announcements or unforeseen news. System trading does not account for such unpredictable market movements, rendering it incapable of making decisions on whether to settle in advance or abstain from trading. As a countermeasure, utilizing tools that halt the EA based on indicator announcements or the VIX (fear index) is also possible.
[Benefits]
・Operates 24 hours a day
If there is an opportunity, system trading will execute trades on your behalf consistently. It proves to be an extremely convenient tool for those unable to allocate time to trading.
・Trades dispassionately without being swayed by emotions
There is an absence of self-serving rule modifications, a common human tendency, such as increasing the lot size after consecutive losses in discretionary trading or, conversely, hastily securing profits with minimal gains.
・Accessible for beginners
To engage in Forex trading, there is no prerequisite to study; anyone using system trading will achieve the same results.
[Disadvantages]
・Cannot increase trading frequency at will
Since system trading operates based on pre-programmed conditions, depending on the type of EA, it might only execute trades a few times a month.
・Suitability may vary with market conditions
Depending on the trading type of the EA, there are periods more suited to trend trading and periods more suited to contrarian trading, making consistent results across all periods unlikely. While the previous year might have yielded good results, this year's performance might not be as promising, necessitating some level of discretion in determining whether it is an opportune time to operate.
However, a substantial advantage of automated trading is its ability to limit and predict risks beforehand.
[Risk]
Inherent to forex trading are the trading risks that undeniably exist in automated trading as well.
・Lot Size Risk
Increasing the lot size forcibly due to a high winning rate can, in rare instances, depending on the EA, lead to substantial Pips loss when a loss occurs. It is crucial to verify the SL Pips and the number of positions held before operating with an appropriate lot.
・Rapid Market Fluctuation Risk
There are instances where market prices fluctuate rapidly due to index announcements or unforeseen news. System trading does not account for such unpredictable market movements, rendering it incapable of making decisions on whether to settle in advance or abstain from trading. As a countermeasure, utilizing tools that halt the EA based on indicator announcements or the VIX (fear index) is also possible.
[Benefits]
・Operates 24 hours a day
If there is an opportunity, system trading will execute trades on your behalf consistently. It proves to be an extremely convenient tool for those unable to allocate time to trading.
・Trades dispassionately without being swayed by emotions
There is an absence of self-serving rule modifications, a common human tendency, such as increasing the lot size after consecutive losses in discretionary trading or, conversely, hastily securing profits with minimal gains.
・Accessible for beginners
To engage in Forex trading, there is no prerequisite to study; anyone using system trading will achieve the same results.
[Disadvantages]
・Cannot increase trading frequency at will
Since system trading operates based on pre-programmed conditions, depending on the type of EA, it might only execute trades a few times a month.
・Suitability may vary with market conditions
Depending on the trading type of the EA, there are periods more suited to trend trading and periods more suited to contrarian trading, making consistent results across all periods unlikely. While the previous year might have yielded good results, this year's performance might not be as promising, necessitating some level of discretion in determining whether it is an opportune time to operate.
Equipment and Environment Needed for Automated Trading Operation
The requirements for operating automated trading (EA) on MT4 are as follows:
・MT4 (MetaTrader 4. An account needs to be opened with a Forex company that offers MT4.)
・EA (A program for automated trading)
・The operating deposit required to run the EA
・A PC that can run 24 hours or a VPS (Virtual Private Server), where a virtual PC is hosted on a cloud server to run MT4.
・MT4 (MetaTrader 4. An account needs to be opened with a Forex company that offers MT4.)
・EA (A program for automated trading)
・The operating deposit required to run the EA
・A PC that can run 24 hours or a VPS (Virtual Private Server), where a virtual PC is hosted on a cloud server to run MT4.
Installation of MT4 and Account Login
If you open an account with a forex broker that supports MT4, you can use MT4 as provided by that forex broker. MT4 is a stand-alone type of software that needs to be installed on your computer, so you download the program file from the website of the FX company where you opened the account and install it on your computer.
Additionally, there are both demo and real accounts available. You can experience trading with virtual money by applying for a demo account. After opening a real account, you select the connection server assigned by the Forex broker, enter the password, and log in to the account.
When you deposit money into your account using the method specified by the forex broker, the funds will be reflected in your MT4 account, and you can trade.
Additionally, there are both demo and real accounts available. You can experience trading with virtual money by applying for a demo account. After opening a real account, you select the connection server assigned by the Forex broker, enter the password, and log in to the account.
When you deposit money into your account using the method specified by the forex broker, the funds will be reflected in your MT4 account, and you can trade.
How to Install EA on MT4
To set up an EA when you purchase it through GogoJungle, follow the steps below:
Firstly, download the purchased EA file from your My Page on GogoJungle. You will download a zip (compressed) file, so right-click to extract it and retrieve the file named ‘◯◯◯ (EA name)_A19GAw09 (any 8 alphanumeric characters).ex4’ from inside.
Next, launch MT4 and navigate to ‘File’ → ‘Open Data Folder’ → ‘MQL4’ → ‘Experts’ folder, and place the ex4 file inside. Once done, close MT4 and restart it. Then, go to the upper menu ‘Tools’ → ‘Options’, and under ‘Expert Advisors’, ensure ‘Allow automated trading’ and ‘Allow DLL imports’ are checked, then press OK to close.
The necessary currency pair and time frame for the correct operation of the EA are specified on the EA sales page. Refer to this information and open the chart of the correct currency pair time frame (e.g., USDJPY5M for a USD/Yen 5-minute chart).
Within the menu navigator, under ‘Expert Advisors’, you will find the EA file name you placed earlier. Click to select it, then drag & drop it directly onto the chart to load the EA. Alternatively, you can double-click the EA name to load it onto the selected chart.
If ‘Authentication Success’ appears in the upper left of the chart, the authentication has been successful. To operate the EA, you need to keep your PC running 24 hours. Therefore, either disable the automatic sleep function or host MT4 on a VPS and operate the EA.
Firstly, download the purchased EA file from your My Page on GogoJungle. You will download a zip (compressed) file, so right-click to extract it and retrieve the file named ‘◯◯◯ (EA name)_A19GAw09 (any 8 alphanumeric characters).ex4’ from inside.
Next, launch MT4 and navigate to ‘File’ → ‘Open Data Folder’ → ‘MQL4’ → ‘Experts’ folder, and place the ex4 file inside. Once done, close MT4 and restart it. Then, go to the upper menu ‘Tools’ → ‘Options’, and under ‘Expert Advisors’, ensure ‘Allow automated trading’ and ‘Allow DLL imports’ are checked, then press OK to close.
The necessary currency pair and time frame for the correct operation of the EA are specified on the EA sales page. Refer to this information and open the chart of the correct currency pair time frame (e.g., USDJPY5M for a USD/Yen 5-minute chart).
Within the menu navigator, under ‘Expert Advisors’, you will find the EA file name you placed earlier. Click to select it, then drag & drop it directly onto the chart to load the EA. Alternatively, you can double-click the EA name to load it onto the selected chart.
If ‘Authentication Success’ appears in the upper left of the chart, the authentication has been successful. To operate the EA, you need to keep your PC running 24 hours. Therefore, either disable the automatic sleep function or host MT4 on a VPS and operate the EA.
In Case You Want to Change the Account in Use
EAs from GogoJungle can be used with one real account and one demo account per EA.
If you want to use it with an account other than the authenticated one, you need to reset the registered account.
To reset the account, close the MT4 where the Web authentication is registered, then go to My Page on GogoJungle > Use > Digital Contents > the relevant EA > press the ‘Reset’ button for the registration number, and the registered account will be released.
When the account is in a reset state, using the EA with another MT4 account will register a new account.
Also, you can reset the account an unlimited number of times.
If you want to use it with an account other than the authenticated one, you need to reset the registered account.
To reset the account, close the MT4 where the Web authentication is registered, then go to My Page on GogoJungle > Use > Digital Contents > the relevant EA > press the ‘Reset’ button for the registration number, and the registered account will be released.
When the account is in a reset state, using the EA with another MT4 account will register a new account.
Also, you can reset the account an unlimited number of times.
Solutions for Errors During Web Authentication or Non-Functional Account Trading
If you encounter an error with Web authentication, or if the EA is trading on GogoJungle's forward performance page but not on your own account, there could be various reasons. For more details, please refer to the following link:
→ Items to Check When EA is Not Operating
→ Items to Check When EA is Not Operating
About the Size of Trading Lots
In Forex trading, the size of a lot is usually:
1 lot = 100,000 currency units
0.1 lot = 10,000 currency units
0.01 lot = 1,000 currency units
For USD/JPY, 1 lot would mean holding 100,000 dollars.
The margin required to hold lots is determined by the leverage set by the Forex broker.
If the leverage is 25 times, the margin required to hold 10,000 currency units of USD/JPY would be:
10000*109 (※ at a rate of 109 yen per dollar) ÷ 25 = 43,600 yen.
1 lot = 100,000 currency units
0.1 lot = 10,000 currency units
0.01 lot = 1,000 currency units
For USD/JPY, 1 lot would mean holding 100,000 dollars.
The margin required to hold lots is determined by the leverage set by the Forex broker.
If the leverage is 25 times, the margin required to hold 10,000 currency units of USD/JPY would be:
10000*109 (※ at a rate of 109 yen per dollar) ÷ 25 = 43,600 yen.
Glossary of Automated Trading
・Profit Factor: Total Profit ÷ Total Loss
・Risk-Return Ratio: Total Profit and Loss during the period ÷ Maximum Drawdown
・Maximum Drawdown: The largest unrealized loss during the operation period
・Maximum Position Number: This is the maximum number of positions that the EA can theoretically hold at the same time
・TP (Take Profit): The set profit-taking Pips (or specified amount, etc.) in the EA's settings
・SL (Stop Loss): The set maximum loss pips (or specified amount, etc.) in the EA's settings
・Trailing Stop: Instead of settling at a specified Pips, once a certain profit is made, the settlement SL is raised at a certain interval (towards the profit), maximizing the profit. It is a method of settlement.
・Risk-Reward Ratio (Payoff Ratio): Average Profit ÷ Average Loss
・Hedging: Holding both buy and sell positions simultaneously (Some FX companies also have types where hedging is not allowed)
・Risk-Return Ratio: Total Profit and Loss during the period ÷ Maximum Drawdown
・Maximum Drawdown: The largest unrealized loss during the operation period
・Maximum Position Number: This is the maximum number of positions that the EA can theoretically hold at the same time
・TP (Take Profit): The set profit-taking Pips (or specified amount, etc.) in the EA's settings
・SL (Stop Loss): The set maximum loss pips (or specified amount, etc.) in the EA's settings
・Trailing Stop: Instead of settling at a specified Pips, once a certain profit is made, the settlement SL is raised at a certain interval (towards the profit), maximizing the profit. It is a method of settlement.
・Risk-Reward Ratio (Payoff Ratio): Average Profit ÷ Average Loss
・Hedging: Holding both buy and sell positions simultaneously (Some FX companies also have types where hedging is not allowed)
Useful related pages
・How to Install MT4 EA (Expert Advisor) and Indicators
・MT4 Beginner's Guide
・Understanding System Trading Performance (Forward and Backtesting)
・Choosing Your First EA! Calculating Recommended Margin for EAs
・Comparing MT4 Accounts Based on Spread, Swap, and Execution Speed
・What is Web Authentication?
・Checklist for When Your EA Isn't Working
・MT4 Beginner's Guide
・Understanding System Trading Performance (Forward and Backtesting)
・Choosing Your First EA! Calculating Recommended Margin for EAs
・Comparing MT4 Accounts Based on Spread, Swap, and Execution Speed
・What is Web Authentication?
・Checklist for When Your EA Isn't Working