I wrote it so many times but here you go
If anyone is wondering why Inukai did it. He was blackmailed by somebody ( probably Eno) with a picture of Anji in sexy lingerie.Anji likes dressing like a girl and he accidentally send a picture of himself to inukai and inuaki first blackmailed him but they eventually fell in love. He wanted to protect Anji but failed. He had to get those pics of Azusa or those pictures would be spread. They got spread in the end. I still hate him though.
I read chapter 19 but anji is still an ass because he listened to his friends criticising Inukai and never said anything to defend him so inukai was mad a bit. They are both fucked up. Plus if you are wondering Azusa and karino will have sex but Azusa is the one who wanted it. The atmosphere is completely different and it's kinda funny too.
I really wanna know his motives...