Looking for yaoi: which manga is this?

[Lheachan]

Hello sorry if I posted in the wrong place but could you please tell which yaoi is this?

 

Well there is a boy he did something I cant recall he was caught buy a guy using his cp. Then the guy brought the boy student in a room where he was raped. Then after that the guy took a picture of him and blackmailed him. The next scene I recall was they are in a park. The guy asked if he put on the toy in him so he said yes. The guy asked him to remove it without using his hands. They they did it. Then there are people coming to the place they are doing it so the guy said to boy studentthat if he is noisy they will be found out

 

The rest I recall is it escallated into the guys friends having sex with the boy student then eventually he got bored and planned to blackmail a new kid again.