Responses
what did he do to Chiaki?
he threatened chiaki that he will send the picture of them having sex to his father
you will know more in this story
http://www.mangago.zone/read-manga/ore_no_oniku_chan/
I know what masaki did in the past is not something we can all accept easily. But let's all look at the beautiful part, he's improving little by little, his terrible doings won't be erased but atleast we can all agree that he is trying to change for the better.