??? can someone sum up what happened in the last few chapters i have no clue what's going ...

the black haired rich dude made our ML come over to study and then kissed him out of no where and threatened to be violent with him. suddenly, our ML gets a call from the blonde boy from school and tells him not to get close to the guy that just smack our ML but then he abruptly has to go. we find out the reason is because he's fucking someone I think and he got mad for them making sounds while he was on the phone so he's pulling out their teeth.