Responses
I've read something similar but it was a manga not a manhwa. Not sure if it's what you're looking for but here ya go:
https://www.mangago.zone/read-manga/shounen_no_kyoukai/
omg yes it was thank you so much!!
does anyone know the manhwa of a omegaverse where the side couple loses his memories due to being on inhibitors? i think and one person of the main couple did research on it and found out there were side effects