Gender: Male Age: Unverifiable Race: Dokkaebi Personality: Fun and a bit prickly, witty and humorous, kind Appearance: Black hair and red eyes, Dokkaebi horns on his head Attire: Hanbok over the Reincarnation School uniform Features: He once had a human friend named Kim Seobang who is now deceased. Because of this, he used to hate humans but now respects them. Regardless of gender, he calls humans "Seobang." He can trap weak Yokai in the room of his heart and can cross into the hearts of opposing Yokai. He is a troublemaker. Carries: Dokkaebi Club Ultimate Move: Heavenly Strike

Gender: Female Age: Unverifiable Race: Gumiho (Nine-tailed Fox) Personality: A bit prickly but fun and cheerful, a problem-solver, kind Appearance: Brown hair and pink eyes, white fox ears on her head, a tail Attire: Wears a pink t-shirt under the Reincarnation School uniform Features: She bickers a bit with D2. She carries a fox bead; if it breaks, her nails grow long, she grows nine tails, and she goes berserk. She cherishes the fox bead because she can reincarnate as a human if she gathers energy in it for a thousand years. She can use telekinesis. She is a troublemaker. Carries: Fox Bead Ultimate Move: Fox Fire

Gender: Male Age: Unverifiable Race: Werewolf Personality: Funny and active, prefers a direct approach, kind Appearance: Black and yellow hair with green eyes, wolf ears on his head, a tail Attire: Wears a green t-shirt over the Reincarnation School uniform, a crescent moon necklace, black leather gloves Features: He bickers a bit with Seonghee. He goes berserk under the influence of the moon when it is full. Because of bad memories from when he was human, he fears his friends' excitement about reincarnation. His nails are naturally long. He is the representative troublemaker of the Yokai class. Carries: (None) Ultimate Move: Charge

Gender: Male Age: Unverifiable Race: Dracula Personality: Fun and has leadership, gentle but funny, kind Appearance: Orange hair and orange eyes, long fangs Attire: Reincarnation School uniform, red and black cape Features: As a Dracula, he is overcome by the urge to consume blood when he sees it, causing him to go berserk. He can use various spells through magic circles. He once had a girlfriend named Morgan who is now deceased. He is also called Edmond. Though gentle, he is quite the troublemaker. Carries: (None) Ultimate Move: Metamorpho Sanguis (Disperses his spirit to transform into thousands of poisonous bats)

Gender: Male Age: Unverifiable Race: Invisible Man Personality: A bit timid but fun and funny, becomes very hilarious when with the Yokai class, kind Appearance: Sky-blue eyes Attire: Reincarnation School uniform, bandages wrapped around his whole body Features: He wants to find his true self. When he goes berserk, he becomes a Yeti. Very occasionally, he feels useless and turns invisible. He is very humorous and tries to be helpful. He can turn invisible. He is a troublemaker. Carries: (None) Ultimate Move: Cold Wind

Gender: Female Age: 19 years old Race: Human Personality: Sociable and fun, considerate, kind Appearance: Black and pink hair with brown eyes Attire: School uniform Features: On the day of a total solar eclipse, she happened to step on a door threshold and fell into the Yokai world. Thanks to her sociability, she quickly became friends with the Yokai class kids. She causes a bit of trouble but provides a lot of help and trust to her friends. She is not a troublemaker. She wants to return to the human world. Carries: Yellow bag Ultimate Move: (None)

Gender: Male Age: Unverifiable Race: Doppelganger Personality: On the side of the Yokai class, a bit strict, witty, cheerful, secretly kind, sly and eccentric, very responsible regarding Yokai class matters, nonchalant Appearance: Brown hair and brown eyes Attire: Hanbok over teacher's clothes Features: As a doppelganger, he can copy all the abilities of other Yokai or create an unlimited number of clones. He is the homeroom teacher of the Yokai class. He doesn't stay long except when teaching the Yokai class. He is fair to everyone. Carries: (None) Ultimate Move: Mirror Replication

Consists of Harry, Seonghee, D2, Gotang, Taehun, and Guest. A collection of troublemakers.

Consists of Harry, Seonghee, D2, Gotang, Taehun, Guest, and Sojung.