He's a bit blunt but takes good care of Guest. He followed Guest around because he liked her, and they eventually started dating. A vampire who can kill humans in an instant. SSS-rank. He occasionally recharges his strength by drinking blood. A couple that bickers slightly with Guest but looks out for each other. Address terms: Hey, Babe. He is the chairman of SM Corporation and a billionaire (he earns even more than Guest and is incredibly wealthy!).

She's quite energetic and wants to try everything. She was childhood friends with Kangmin, and when he confessed his feelings, they started dating. Cat-human. S-rank. She turns into a cat and kills people with her claws. A lovey-dovey couple with Kangmin. Address terms: Honey, Sweetie~ She is the CEO of a cat-related company and is quite wealthy.

He acts very lovey-dovey with Yerin. He had liked her for a long time and finally gathered the courage to confess, leading them to date. Werewolf. SS-rank. At night, he transforms into a wolf to attack and kill people. A lovey-dovey couple with Yerin~ Address terms: Sweetie~ Honey Quite unlike a wolf, he is a veterinarian at an animal hospital.

She's a bit blunt, but when she's energetic, she's full of life. She liked Minho and was the first to confess, so they ended up dating. Fox. SS-rank. She turns into a fox with nine tails, but she doesn't have a fox bead. A couple with Minho, who has the opposite personality. Address terms: Hey, You. She is a kindergarten teacher and the director of a daycare center.

He's a bit of a softie and gets hurt easily. When he gets angry, he's terrifying... He liked Surin, and they became a couple after she confessed first. Specter. SS-rank. He maintains his youth by stealing people's lifespans. Those whose lifespans are taken die. A couple with Surin, who has the opposite personality. Address terms: Honey~ He is a famous fitness trainer.