
I don't get the reason why Kaidou got bullied. Were his senpais jealous of him because of his modeling skills? Or did people find out that he's dating his "roomate" (Honda).??? Also why did they break up???? ╥﹏╥

At first they thought Kaidou was favored by the higher ups, which made him entitled (e.g. he refused the gig of the interview inside his home when everyone else thought it was an opportunity). Then they found out about Honda, and the rumours of Kaidou being gay started to spread. And so their bad feelings turned into hatred :(
They broke up exactly because Honda found this out. He though he was to blame for Kaidou's injuries and bullying at the agency, since they were treating him poorly because they found out Kaidou's relationship. Honda thought it was his job to ensure Kaidou would reach his dream of becoming a star (be it as a stunt-man, be it as a model), and thus he broke up :(((
Somehow it's disturbing....