Okay, Tsubasa's characters problems with women are well established in the first episode, but it seems Koki's character (who is much younger than the others) is in love with him, or at least very jealous of the time Ishikawa spendwsw with his girlfriend. He even goes so far as to hint to her that Ishikawa and Miyake Ken's character actually have something going on between them and that is why Ishikawa tried to break off his relationships with her.
Of course that school bully notices it (this is a dark and angsty drama after all) and blackmails Koki's character so that he can take (sexual) advantage of him. I feel so sorry for the character!!! *stabs rusty plague infested forks on the other guy :P*
The boy is so incredibly young! Just at that age when teenagers feel they can't really trust anybody to understand their horrible secrets and so just end up suffering alone :/. And as much as Koki's chracter hates him, I have a strong suspicion his praised older brother was the first one to abuse him :P.
I should be in bed bed already, since I have an extremely early shit tomorrow (from 7 a.m to 3 p.m. and we are also changing into Summer time this weekend, so I'll lose one hour anyway), but a cliffhanger ending on ep. 4!!! I think I'll be good and go to bed and finish some more tomorrow :).