Love the dynamics between the characters. Jay could probably be considered a Toxic ML but I was able to continue reading this since there was no non-con sex that happened. Author/artist made it obvious that Shin have the hots for Jay and he gets more turned on when Jay is being aggressive/rough.
The relationship did not start non-con and have the bottom be, "I actually kinda like it." It's just two people that matched each other's freak and kinda get more entangled with each other.