MiniMean's manga / #plot twist(1)

SPOILERS!!!! SO the guy is raping kids "trying to bring them together" and the uke that has stockholm syndrome falls for the old man and the bully is actually in love with him. The old man tries to get the bully and him together but it doesn't work and in the end he cast him aside thinking they would get together. They don't the uke is major depressed because the old man don't want him and the bully is angry depressed because the uke doesn't want him he want the old man, then the uke gets exposed to the school and everybody is grossed out. The bully tries to cheer the uke up and the uke removes the bully's hand in such a way that causes him to fall off the roof and die(suicide); years later it's shows another uke that looks like the last uke and the old man is raping him but it's actually the bully who had turned into a raping old man.