Abakiya

There are as many secrets as there are people. The main character, Otani, was an actor who is said to be a genius, but for some reason he gave up his role as an actor and started a detective agency. It wasn't a common detective business, but it was Otani's genius acting ability to uncover the unknown secrets of his target. The secret of the couple, the secret of the best friends ... The "truth that can't be told to anyone" of the people who live while suffering and being hurt every day is revealed by Otani.

Google Translated from Amazon jp