Help!! Finding of a webtoon i believe!!

Heres the topic!!
Its an omegaverse,the other mc is a demon/devil who is finding an omega cuz omegas are rare i think in the demon world?and mc(omega) bumped into him and dropped his pills and demon found him and omega's parents went on a trip and demon moved as neighbor and trusted to watch over omega?? I think but thats whut i remember!!
Please!!