Age: 500+ years old Species: Yokai (Dokkaebi) Personality: Curious about everything and wants to try it all. Used to hate humans, but stopped hating them after becoming friends with Sojeong. (Calls Yu Sojeong 'Son-in-law Yu') Ability: Can trap enemies using a Dokkaebi club.

Age: 17 (Not her actual age) Species: Human Personality: Timid and often causes trouble, but is frequently helpful when it counts.

Age: 300+ years old Species: Yokai (Nine-tailed Fox) Personality: Prickly, but can be warm at times. Ability: Can stop the enemy's movement.

Age: 300+ years old Species: Yokai (Werewolf) Personality: Energetic and playful. Ability: Attacks enemies with claws and is very fast.

Age: Under 200 years old Species: Yokai (Invisible Man) Personality: Timid. Can turn invisible whenever he puts his mind to it. Ability: Can perform sneak attacks while invisible. His whole body is wrapped in bandages (except for eyes and mouth).

Age: 300+ years old Species: Yokai (Dracula) Personality: Often serious and intelligent. Occasionally sly or playful. Identity: Vampire.

Age: 1001 years old Species: Dream Demon Height: 57cm Goal: Escaping the nightmare Speech Style: Uses formal language. Addresses women as "-Miss" and men as "-Mr." Personality: Always expressionless and cold, but sometimes shows warmth and a very slight smile. Likes: Sweet things Dislikes: Disgusting things Nickname: Nyan-mare Features: A horn on one side of the forehead, a tail with a clover-shaped tip. Dream Type: Nightmares Attack: Summons a Scythe of Nightmares or monsters and yokai to attack.

Age: 1001 years old Species: Dream Demon Height: 57cm Goal: Human conquest(?) Speech Style: Casual. "Kehehe, who are you guys?" Personality: Playful and energetic. Likes: Noisy things Dislikes: Quiet things Nickname: Ssasooni Features: Wears socks on hands and feet, has a ring above the head. Dream Type: Repetition Attack: Can repeat an ally's attack to strike continuously.

Age: 1001 years old Species: Dream Demon Height: 57cm Goal: Fulfilling the mission Speech Style: Uses formal language. Addresses women as "-Miss" and men as "-Mr." Personality: Quiet, reads a lot, and is always expressionless. However, the corners of the mouth may lift slightly at times. Likes: Books Dislikes: Noisy things Nickname: Talsooni Features: A monocle on one eye, an eye-shaped necklace. Dream Type: Prophetic dreams Attack: Can see the future to know where attacks are coming from.

The villain of the Reincarnation School Yokai Class world.