Are You a Shady Agency Trying to Trick Me? but I'm a Legal Nut

The soul of a national fighting champion passed through the body of a frail law student. His parents passed away and he had a younger sister who depended on each other. Under this heavy pressure, Fujino had to stop studying deeply and started studying early to make money while living. Unexpectedly, a young man who was just starting out would encounter a rogue intermediary. Haha... Black intermediary, you didn't expect it! I have the title of national fighting champion and legal knowledge. Are you sure you can eat me? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.