岩守 甲也

The protagonist who has an office in the business district.
Although officially he's running a finance consulting company, his main work is whatever the dirty work Kagebayashi group requests him to do.

Kouya is harsh towards any scum, but when  he sees a good person who ends up falling low because of a mistake he often offers them a helping hand (but won't pull them out of trouble).

He does his work seriously, but is careless in private, not caring about what he eats and that his room is full of clothes scattered around.

Very vigorous when it comes to sex, it's normal for him to continue for 4-5 times once he starts.