“Yozora no sumikko de” and the sequel “Yoake ni Furu” from Hayakawa Nojiko are gorgeous and kinda have a vibe like this story. Also, I think “Slow starter” and it’s sequel “slow days” (from Ichikawa Kei) are like this too, but I’m not sure about this one… It's been a long time since I read those mangas.
i made a list with like similar hs angst - some are a bit diff but the similar ones i think you can tell frm the vibes of the cover images hehe
https://www.mangago.me/home/mangalist/2079617/?filter=&page=1
but for just one this is reallly good but with a long shounen ai buildup - this is the prequel and they get together only in the sequel which is in the list
https://www.mangago.me/read-manga/here_and_there_and_us/
Does anyone know more stories like this PLEASE tell me