From what I remember the uke worked at a cafe and was super good looking. Then he hired another good looking part timer which later turned out to be living in the same apartment complex. I think after he releases pheromones, they fuck and yada yada. Pretty sure the seme had dark hair and was younger. Later it’s revealed Uke doesn’t believe in “bonds” or “mates” and had a bad past relationship which caused him to have his bite mark on his neck removed. Then later meets his ex.
Probably this
https://www.mangago.me/read-manga/goodbye_to_destiny/
Imagine having an affair with your neighbour then going on to then marry her daughter... that family gathering is going to be super awkward.
the dad def wont allow it knowing him