Nice to meet you. I am "Suruwo," short for "Wy to systematize stock trading." While working as a company employee in the Kansai region, I personally developed a stock trading support system using Python and AI. From candidate extraction of stocks to LINE notifications and validation with air trading. I am gradually organizing the system to reduce moments decided by a “somehow” feeling. Here, I share what I learned in building the system and validating it, along with failures and improvements. The person who has systematized it is the one making the most trial and error. Is it still a lot of work? The content published here is a personal record of development and validation. I will distinguish between the results of air trading and actual buying/selling performance.