Responses
A cup full of water (ml, manhua)
Bukiyou na silent (mc, manga)
I haven't read roses and champagne, but these are characters I personally see as being on the spectrum so I don't know if their vibe is exactly what you're looking for
https://www.mangago.zone/read-manga/konna_ore_wo_suki_toka_majika/
Kind of a jerk though
https://www.mangago.zone/read-manga/motomete_yamanai/
A bit cuter vibe than R&C guy
he’s autistic ?
Need bl manhwas or mangas with kinda autistic ml like the dude from roses and champagne