
ik people are gonna say its SA which it is, im certain they will work it out though, i think the author is trying to portray inexperienced and just poorly done bdsm on purpose, like that it wasnt the way to go bla bla bla.
he was a jerk but was a one time moment and he stopped, it sucked to see but i understand the message being portrayed, and dont say that it wasnt necessary for the manhwa, its a BDSM smut manhwa, SA is typically tied to the stigma around that so as long as the chapter after are written well i assume all will be well.