Female Rank 4 Kind and timid. She is bullied a lot by the delinquents (especially Delinquent Girl & Park Geundwae; Seo Ari is subtle about it). She likes Alpher and also likes Model Student. She is beautiful. She has made a contract with Alpher.

Male Rank 1 He often mocks others but is secretly a tsundere. He likes Melona ice cream and likes High School Girl. He is very popular with the other kids. He is handsome. He is a Demon King. (When his hair is long, he's the Demon King; when it's short, he's not.) He thinks of Lucy as a younger sister or a pet. He finds Baal annoying. He made a contract with High School Girl.

Female Rank 1 (presumably) A personality that must have whatever she wants. She has her eyes on Alpher (because he's handsome). She subtly mocks High School Girl. Extremely wealthy. Beautiful.

Male Rank 1 He likes High School Girl. He has a cold personality but is secretly a tsundere. He is a bit short. He is a senior. Handsome.

Female She is jealous of High School Girl. Rank 4 in the Demon Realm (the lowest). She likes Alpher. She is a dog demi-human (can transform into a dog). She is pretty. She wants to become Alpher's fiancée. She speaks politely to Alpher. (e.g., "Master Alpher!! What are you doing?")

Female She beats up High School Girl. Rank 2. She hangs out with Park Geundwae. She has a pretty face. Her personality involves mocking and bullying others.

Male A personality that bullies and mocks others. He likes Delinquent Girl. Rank 2. Looks like a typical delinquent. He bullies High School Girl.

Male Rank 3 among demons. He likes Alpher. He has a cold yet playful side. He is the English teacher. Handsome.