Hen

Anyone remember this manwha/manhua that had a black haired dude whose entire bloodline was made to protect a white haired dudes bloodline, and the white haired dude kept waking up with weird tattoos I think their "friends" were drugging him for some ritual. It was in modern times but has some fantasy elements like they had powers or smth. Please let me know if anyone remembers.

Before our lists disappeared I added a manwha about a CEO omega who got pregnant after a one night stand, but the problem was that he had a hard time remembering peoples faces. So he didn't notice the person constantly trying to get near him was the person he slept with. I think MC had black hair and the ml had blonde? Anyways I can't find it at all so if anyone knows anything I'll be very grateful.