Couple wishes to have a kid of their own but husband discovers he is infertile. They resort to a sperm donor system, but this high quality donor only accepts to donate sperm via natural means?!

The main character, No Seona, impulsively picks up a snake on her way home from work. However, it turns out that the snake is actually a member of the Suin Clan (snakes that can transform into humans)! After...

Darren, alpha, is an office worker who does not get along with many people because of his distant and contemptuous temperament. One day of pouring rain, he discovers in a street a semi-unconscious omega in heat...