I have watched the market for 15 years with currency fluctuations at the center. Currently, due to compatibility with the trading environment, I primarily trade on NASDAQ while operating the educational trading site "ULTRA THEORY." Rather than predicting and guessing market movements, I emphasize observing actual price moves as they happen and following the facts. In particular, based on the structure of price movements such as turning points, failures, and re-turns, I research and publish on distinguishing between the shapes that can be captured and the shapes that should be passed over. At GogoJungle, I have published a systematized concept titled "The Principle of Market Rebound" (［Market］’s Rebound Principle).