Responses
Is the black hair guy an idol otaku?
Or does the couple sleep together at first (like a one night stand)?
Could it be this?
https://www.mangago.zone/read-manga/man_of_a_virtue/
Maybe the manga checkmate(TAN)
Sounds really similar
I believe they were childhood friends
BL with (I think) office setting, the two protagonists hate each other bc one of them was always better than the other one, one of them has black hair and (I think) glasses and the other one has light brown hair. That's all I remember, help （/TДT)/