Ichi Omiya

A man is trying to flee from his past, and he ends up in an underworld filled with strange characters. He finds a job skewering meat in a dirty old room in a shabby old house filled with prostitutes, gangsters and a weird old tattoo master. He clearly doesn't fit in to this new world, and the inhabitants of it immediately despise him.

Tadaomy Ando became a yakuza boss at a young age. Because of his subordinate, he quit the yakuza. Now, he learns from Takashi Konaka the trade of illegal money lending and how to collect debts. Tadaomy Ando decides to become a loan shark. He has customers but has a hard time collecting debts.