The uke has white long hair and the scent of a demon , he has to wear some type of necklace to suppress the scent, I think the ml gives him the necklace
https://www.mangago.zone/read-manga/please_sleep_with_me/ Check this
The uke has white long hair and the scent of a demon , he has to wear some type of necklace to suppress the scent, I think the ml gives him the necklace