So I'll try to explain what it's about but I can't remember much, I know that uke and seme went abroad like years later and got married, but little brother( I think) from seme (it's like last two chapters about that little brother) he has relationship with this other guy idk if it's just sexual or not and he calls his older brother to ask for advice for something, that's all I can remember if anyone knows please help I'm searching for it for so long~
This plot reminds me a bit of Challengers and its spin off The Tyrant Falls In Love (Koisuru Boukun), but I'm not 100% sure though. It's been a couple of years since I read so I could be wrong but I still recommend the mangas. reply