Jay jay's Questions (2)

so I read this manga a little while ago and I want to start reading it again because I read it about a year ago and it wasn't finished I believe there was at least 131 pages/episodes I don't know what to call it, but it's about these two guys and they are in high school and I believe one or both of them play basketball I believe one of them has blonde hair and the other has black hair and I believe the one with black hair like cross dresses and pretends to be his girlfriend for some reason and I know that the character with blonde hair has a sibling and I think the sibling becomes close with the one with black hair loll I hope someone knows!!

I'm trying to find this specific one that I read recently but there's like an age gap between them, the older guy wears glasses I believe he was in his 40s the younger guy was in his 20s, and they basically met at the younger guys guitar class that he caught a whole bunch of other people