Minami Shirou

He graduated from university in economics. However, he was unable to find a job due to the difficult employment situation. He joined Hokuyo Finance, a black-money firm that was looking for a part-timers.

His personality suited the job of a collection agency, and he felt at home there. At first glance, he looks like a nervous young man, but as a collection agent he is as persistent and cunning as a snake. He has always loved to take advantage of his opponents and make them dance in the palm of his hand, he particularly gets pleasure from corrupting women.

When collecting money, he does don't try to violently corrupt clients but rather to exploit their weakness and corrupt them.
He behaves in an economic yakuza-like manner. Depending on the situation, he may be violent but it will be calculated.

When he was a student, there was a popular gravure idol he was a fan of. Hitomi was the object of his desires and frequently used her as masturbation material. As he went to go collect debt, he discovers that Hitomi is the wife of the man who owes money. He decides to corrupt her while keeping a careful eye on her.