so black hair guy (ml) is a yakuza boss’s son, blondie (mc) is a delinquent. ML is seemingly weak so when he confesses to mc, mc treats it as a joke. In the first chapter it seems like ml gets one of his gang members to assault mc so he becomes dependent on him/ some sort of savior image. ML is threatening MCs friend because he is jealous of him. Second chapter mc and his friend find out that ml was the one who set up the whole assault, so they confront him. And as you can see ml is a masochist so he enjoys when mc degrades and confronts him. ML is still jealous of mcs friend, and threatens him once again this time saying he will hurt his sister. So MCs friend backs off. That is the story thus far, do you need me to elaborate on anything else? (=・ω・=)

Wait I don't get the story