Responses
I think the manhwa," perfect leash" matches your description but it's not a campus romance. Go check it.
maybe this one? https://www.mangago.me/read-manga/feel_my_benefit/
thank uuuu that’s the one
1. on the cover, uke has black hair and wears glasses and is tied up in a red ribbon. Seme has white hair. It’s a campus romance because the seme calls the uke sunbae. I think the seme is possesive