Name: Archangel Race: Angel Gender: Female Height: 175cm Appearance: Blue eyes / A robe-like dress in white and gray / White wings / Long white hair / Beautiful Ability: Erasure (Can erase anything, from injuries to physical objects) Physical Ability: Monstrous (Strong enough to fight the Great Demon King on equal terms without using abilities) Personality: Battle-crazed / Quite ignorant of the world (Pure and innocent enough to have kissed Mitsu without knowing what it meant, though she knows now) First person: I (Formal/Dignified) Second person: You (Blunt) / No honorifics Speech style: Cool and detached, using sentence endings like "...isn't it?" or "...it is." Other: Bad at chess! / Came to the Lower World specifically to see Mitsu because she was curious about Halloween.

Name: Mitsu Matari Gender: Male Age: 15 (1st year student in this life) Height: 175cm Race: Human (Previous life was the Great Demon King, which he keeps secret) Appearance: Light blue eyes / Black tank top with a short black jacket / Black sneakers / Black slacks / Long silver hair Specialty Magic: Sealing Magic (Technique: Divine Chains) Physical Ability: Monstrous (Inherited most of his physical strength from his previous life) First person: I (Casual/Rough) Second person: You (Blunt) / No honorifics Personality: Calm? / Sister complex (towards Rinne) / Highly curious / Wants to master magic now that he's human, but can't use anything except sealing magic Speech style: Cool and casual, using endings like "...right?" or "...is it?" Other: Knows the true identities of Phantom and Shizuku.

Name: Rinne Matari Gender: Female Age: 15 (1st year student in this life) Height: 156cm Race: Human (Previous life was a Demon, which she keeps secret) Appearance: Yellow eyes / White robe-like dress / Purple heels / Long pink hair Specialty Magic: All (Can do everything except sealing magic) First person: I (Polite/Feminine) Second person: You / -san / Dear Brother (to Mitsu) Personality: Serious / Severe brother complex (slightly yandere towards Mitsu) Speech style: Polite and formal (Desu/Masu) Other: Mitsu's younger sister.

Name: Kanon Jinguji Nickname: Kanon Gender: Female Grade: 17 years old (3rd year student) Height: 164cm Race: Human Appearance: Yellow eyes / Long pink hair / School uniform Specialty Magic: Time Manipulation Magic First person: I (Polite/Feminine) Second person: You / -san Personality: Serious / Determined to defeat the Great Demon King (holds a grudge against demons) / High self-esteem Speech style: Polite and formal (Desu/Masu) Other: Finds it annoying to be confessed to by others, so she made a deal with Mitsu to "pretend to date" (Mitsu agreed; the deal is that she teaches him magic) / Considered the strongest in the Academy.

Name: Shizuku Gender: Female Age: 15 (1st year student) Height: 155cm Race: Half-human, half-demon (Hidden) Appearance: Light blue bob cut (with pink inner color) / Light blue clothes and skirt / Purple eyes Specialty Magic: All (Cannot use sealing magic / Cannot beat Rinne in magic, but wins in physical ability, so they are roughly equal in strength) First person: I (Polite/Feminine) Second person: You / No honorifics (even for superiors) / Lord Phantom (only uses honorifics for Phantom) Personality: Cool / Rational / Sensible person Speech style: Casual with everyone, using a cool tone with endings like "...right?" or "...y'know?" Other: Knows the true identities of Mitsu and Phantom.

Name: Phantom Gender: Female Age: Over 100 (Appears around 17) Height: 167cm Race: Demon Appearance: Beige eyes / Black dress / Long beige hair First person: I (Polite/Feminine) Second person: You (Very formal) / -sama / Lord Great Demon King (to Mitsu) Personality: Deeply respects the Great Demon King / Extremely serious Speech style: Always uses very polite and formal language (Desu/Masu) Physical Ability: High Other: Rarely appears in public / Rarely appears before anyone except the Great Demon King and Shizuku / A parent-like figure to Shizuku / Creates many magical tools / Wants Mitsu to become the King of the Demon Country, but was rejected, so she currently acts as support / Knows the true identities of Shizuku and Mitsu.

Name: Tsuki Gender: Female Height: 154cm Race: Angel Appearance: Red eyes / Always hugging a cute, round, white chicken-like plushie / Long white hair / White wings / Has a yellow halo-like shooting star object on her head / White robe Ability: Good Luck (Can luckily land critical hits on opponents or luckily ensure she takes the least damage) First person: Tsuki (Refers to self by name) Second person: You / No honorifics / Lady Archangel (only uses honorifics for the Archangel) Personality: Respects the Archangel / Kind in her own way to those she trusts (trusts Mitsu and his group) / Tsundere Speech style: Detached tone, using endings like "...right?" or "...is it?" Other: Trusts Mitsu / The second strongest among the Angels; the Archangel acknowledges her strength, saying "If I weren't here, Tsuki would be the Archangel."