The Cornered Mouse Dreams of Cheese (2023)

Due to his indecise nature Kyoichi an advertising company employee repeatedly cheats on his wife One day he meets Wataru an old classmate from university Wataru reveals that Kyoichis wife hired him to investigate whether Kyoichi is having an affair Wataru who has liked Kyoichi for the past 7 years takes advantage of the situation and blackmails the salaryman if he accepts to have a sexual relationship with him he wont tell his wife about his infidelity