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https://www.mangago.zone/read-manga/kiraboshi_dial/
I read this recently so it's the only one that comes to mind rn. It lowkey fits what ur looking for...ig? Tho the uke isn't as timid as yamaguchi
yoiyoi monologue
https://www.mangago.zone/read-manga/ashita_wa_docchi_da/
Literally this
This one to an extent? It’s also childhoods friends to lovers :D
https://www.mangago.zone/read-manga/for_you_99/
I just realized you meant manga! These have those type of semes
https://www.mangago.zone/read-manga/sokuseki_ad_lib_lover/
https://www.mangago.zone/read-manga/sex_drop/
Can anyone recommend a yaoi MANGA (non-webtoon format) with a SEME that has the same attitude as Kei Tsukishima from Haikyuu. The quiet, reserved-closed off type, has an attitude guy but has a soft spot for the uke. Would prefer if the uke also has an attitude like Yamaguchi but not really a requirement