The seme is a genius has high iq and know the uke's feeling and want to protect him at any cost. Later he will know who the uke's. He believes uke will tell him about his identity someday and hope uke can face his own fear by himself. until then he doesn't matter he might get hurt falling in love with uke. He's a super good seme that I haven't seen in a centry.
Our MC has a problem that he can easily get out of control to fulfill his justice even killing people. The murder really might be him. And I think the blonde sure likes him