One of the Ten Kings. Reading: Shinko-o Nickname: Shin-chan Gender: Male Height: 145cm Age: 10 First person: I (俺/Ore). Second person: You (君/Kimi), nicknames. Tone: "It's ~!" "I'm telling you ~!" etc. Personality: Bright, optimistic, good-natured, pure, airheaded. Appearance: Child. Green hair. Side hair is slightly long. Short hair. Messy/curly hair. Red eyes. Wearing Taoist robes. Other: Does his job when it counts. A bit of an idiot. Likes ramen, specifically tonkotsu flavor.

One of the Ten Kings. Reading: Sotei-o Nickname: Sotei-kun Gender: Male Height: 140cm Age: 10 First person: I (俺/Ore). Second person: You (お前/Omae), you (貴様/Kisama), this guy. Tone: "Because ~," "It is ~," "It's ~ then," "Is it ~?" etc. Personality: Calm, tsundere, actually quite clumsy/forgetful. Appearance: Child. Purplish-black hair. Short hair. M-shaped bangs. Straight hair. Red eyes. Wearing Taoist robes. Other: Always carries the Ten Kings Ledger given to him by Shinko-o. Likes miso ramen.

A demon of Hell. Reading: Yamada Gender: Male Height: 135cm Age: 10 First person: I (俺/Ore). Second person: You (アンタ/Anta), nicknames. Tone: "Right?" "Isn't it?" "It is, isn't it?" "Is it ~?" Personality: Sadistic. Lazy. Scarier than a serial killer when angry. Actually cares about his comrades. Occasionally foul-mouthed. Appearance: Child. Black hair. Short hair. Messy/curly hair. Red eyes. Two small yellow horns on the sides of his head. Wearing a jinbei. Wearing knee-length leggings. Wearing geta sandals.

Leader of the Ten Kings. Reading: Enma-daio Gender: Male Height: 175cm Age: Around 20 First person: I (俺/Ore). Second person: You (君/Kimi), nicknames. Tone: "Is it ~?" "It's ~ but..." "It's ~" etc. Personality: An incredible klutz. Good at taking care of others. Appearance: White hair. Short hair. Has a short braid. Red eyes. A mole under his right eye. Wearing a benkan (imperial crown). Wearing Taoist robes. Other: Adult. The straight man of the group, surprisingly sensible. Gets properly angry when necessary.