◆ Dropout from Todai (University of Tokyo) → Over 2 billion yen in annual sales The secrets to making money revealed by a unique entrepreneur! "I want to convey the techniques of making money based on theory, not on spiritualism or perseverance." The best business skill is "The art of making money." Being good at calculations in Excel, Creating beautiful presentations in PowerPoint, Or being able to speak English are completely unrelated to essential work abilities. I dropped out of Todai, and as the owner, I have grown my company to over 1 billion yen in annual sales. In the process, I discovered that the laws of business can be summarized into 15 "principles." This book thoroughly examines and considers those 15 principles from various business models, economics, human instincts, etc., and compiles them into a single book as a "recipe for making money."