well, once again, I'm searching for a yaoi manga title... hehehe...
I can somehow remember the story although, I'm not sure if it is a one-shot or not...

The story is: the Uke went on a drinking party with his colleague...
He got drunk and had sex with his co-worker...
That co-worker(Seme) blackmailed him(Uke) and they started to live together...
later on... The Uke will see a picture of him with the Seme [apparently they were in the same club(basketball I think)]
The Seme will admit that he had a crush on the Uke when they were still students...
I think it ended with the Seme trying to coerce the Uke to adopt him in the family registry...

that's about it... I am sorry for the inconvenience, but please do help me...
thank you in advance (^.^)

All yaoi/yuri related thread go to the yaoi/yuri section of the forums. Even if you're looking for something it goes there.
I'm not sure if you accidentally posted this in the wrong section, or keep making yaoi related threads in the I'm looking for section, and then having it moved. (Since this is you're 3rd thread about a yaoi manga, and the other two are in the proper section).

As for help with what you're looking for, doesn't sound fimilar to me, but you can look at the blackmail tag along with the yaoi genre in the advance search by genre page for the time being.

Sidenote - Welcome to the forums. Please check out the forum rules, and FAQ. 😉

Yes yes, I know I make longwinded comments, but that's just me >.<
I should proof read my comments more, but I won't...
So keep in mind I'm filled with typos

Check out FAQ and Forum Rules if you haven't yet.
For errors linking in threads

Oh... I'm sorry... my bad... thank you for telling me...
well, I did search for the blackmail tag... but I was unable to find it(maybe it's a side story??)
anyway, I'll keep in mind to what section I should post in...

Ronald no Yabou ch7-8 - Love Box

YES!!! yes you are right... thank you very much for pointing me in the right direction...
once again thank you for replying (^.^)