![](https://pic1.mangapicgallery.com/r/avatar/dd/u58704_50x50.jpg?2)
Huuuum maybe this
https://www.mangago.me/read-manga/dog_style/
Students, fighting, best frends, and so on.
![](https://pic1.mangapicgallery.com/r/avatar/8f/u1807553_50x50.jpg?2)
Is it Silver Diamond....?
https://www.mangago.me/read-manga/silver_diamond/
![](https://pic1.mangapicgallery.com/r/avatar/45/u950518_50x50.jpg?2)
https://www.mangago.me/read-manga/nanji_ware_wo_kouryaku_seyo/ it's somewhat similar to this story but i remember the seme has black hair and there's a side couple about the uke's brother too
i can't tell if i'm imagining things and made shit up now TT and it's actually just this story but the manga im finding is different
![](https://pic1.mangapicgallery.com/r/avatar/dd/u58704_50x50.jpg?2)
Probably not thi ones but lets try
https://www.mangago.me/read-manga/the_uninvited_guest_on_my_shoulder/
https://www.mangago.me/read-manga/kappa_no_yomeiri/
so there is an isekai bl where the seme is the typical nerd with glasses and messy blackhair and the uke is blond and long hair(?), i don't remember if he was tan or not. and his brother came to earth too and has his love interest too?? i read it before but i can't find it again. i don't remember if the nerd seme and uke are the side couple or not but there's a side couple.