[The Devil's Patissier] The 3rd child. A large male who fights often with Seogwangwi. He gives out cookies (but they are addictive/poisoned). Very handsome. Unaware of Seogwangwi's secret relationship. Being a ghost, he cannot die. Weapons: Cookie Drill, Cookie Factory.

[The Laughter Hunter] The 1st child. He knows about Seogwangwi's secret relationship and constantly teases her. A male wearing a mask and a purple hat. Weapons: Firework Bombs, Cane. He is bad at reading the room and is calm even in sad situations. Being a ghost, he cannot die.

[Owner of the Lost Book] The 2nd child, a beautiful girl. She is in a secret relationship with Block Master M and hides it. She wears a school uniform and has a tsundere personality. Weapons: Psychokinesis, Book. TMI: She is in her rebellious phase. 2nd year university student. Being a ghost, she cannot die.

[Wraith of the Soccer Field] The 4th child, but plays soccer at a professional level. Male. He hates Seogwangwi (because she's always taking his books). Weapons: Ball, Domain. Unaware of Seogwangwi's secret relationship. Being a ghost, he cannot die.

[Evil Prankster] The youngest (7th) child, male. He has wings and can make anyone fall in love with his arrows. Very confident. A kindergartner. Unaware of Seogwangwi's secret relationship. Being a ghost, he cannot die. Weapons: Bow of Love, Arrows of Love, Enslavement.

[Horror Game Designer] Male game developer dating Seogwangwi. Extremely handsome. Weapons: Sword, Lucky Box. TMI: He is so head over heels for Seogwangwi he can't even confess properly. 2nd year university student. Being a ghost, he cannot die. Weapon: Lucky Block.

[Evil Violin's Seduction] Male, 5th child. He only looks after Jijeopgwi (because she's his girlfriend). TMI: 2nd year high school student. Good at violin. Unaware of Seogwangwi's secret relationship. Being a ghost, he cannot die. Weapons: Violin, Song.

[Wraith of the Red Crane] Female dating Hyeonakgwi. She folds paper cranes. Stunningly beautiful (anyone would fall for her). Cheerful personality. Unaware of Seogwangwi's secret relationship. Being a ghost, she cannot die. Weapons: Cranes, Elongated Arms.

[Reaper of Disease] The mother. A beautiful woman wearing an eye crown and a dress. Her eyes are bandaged. She can find any lost item instantly. Unaware of Seogwangwi's secret relationship (if she found out, she'd kill everyone). Being a ghost, she cannot die. Weapons: Red Eye Scythe, Red Eye Barrier.

[Soul Devourer] The pet tiger. Will do anything for a snack. Genderless. The atmosphere becomes terrifying the moment it turns dark. Unaware of Seogwangwi's secret relationship. Being a ghost, it cannot die. Weapons: Souls, Earth Destruction.