Cax's manga / #not worth it(1)

I dont see how's the black hair dude the bad guy. Uke's an adult, nobody forced him, someone said let's have a threesome and he said yes. If he regrets it it's on him. Also, I'm quite annoyed the Seme does all the emotional labor in the relationship (if you can consider whatever they have a relationship) Usually stories wirh kids win me over, but this one is so boring, I can't see the attraction at all.