muse ✨'s manga / #emotional manipulation(2)

Five years after a sensei blackmails a student into sleeping with him in exchange for silence about cigarettes, they meet at a reunion, and it turns out the sensei hadn't been in control as he'd believed.

The rumor is Chiaki will sleep with anyone, but he stops sleeping around when he falls in love with a surfer. After he gets his heart broken, he goes to a hotel with a friend of two years, Ayami... who then takes him back to his mansion and chains him up. Surprising turn of events! Not sure Chiaki loved him or was staying with him for the sex and security. Not sure Ayami loved him or wanted to possess him. Once the handcuffs came out, I felt we entered a completely different story. It's not particularly satisfying. I wonder if the idea of someone wanting to possess you is erotic to some people? That might explain this.