Masumi steps in to help Tobita with an agressive ex and ends up finding out about his S&M fetish and becoming Tobita's sex friend while taking the sadist role. Although Masumi isn't too into it, he likes seeing how much Tobita likes it, but as they get closer, he starts to lose control of his feelings and himself. I was on board until Masumi started to get a little too violent with Tobita, then it really turned me off of this. Trigger warnings: S&M, bondage, violence, verbal abuse.
Yoru wa Tomodachi