Maybe this? https://www.mangago.zone/read-manga/a_man_who_gives_it_all/
It's the first that came to my mind, even though I'm pretty sure I've read others I can't remember
nerd project (still ongoing tho)
i have the perfect stories for you
https://www.mangago.zone/read-manga/ipsae_s_leaf_in_haneum_s_breeze/
https://www.mangago.zone/read-manga/a_guide_thicker_than_blood/
and the most beloved; nerd project
YES I LOVED THIS
omygod
YESSS
"he messed up my insides then went back to talking about his interests in computers as if he didn't just fuck me for 8 rounds.."
OKAY HEAR ME OUT.. i want this seme to be like nerd nd super in love with the uke. and when the uke finally gave him a chance, turns out the "nerd" was a monster in bed.