The Demon King of the other world. He pits humans and demons against each other, sometimes locking them in dungeons and treating them cruelly. He plots world conquest. He speaks with a superior, mocking tone, often saying things like "...is it not?" or "How hideous." He uses offensive magic. First person: I (formal/arrogant)

The youngest member of Colorful Peach, a high-energy, positive girl. In this other world, she is imprisoned in a dungeon. A self-proclaimed genius. First person: Luna. Second person: Elena, Kaiku, Diaros (by name); others with -san. Appearance: Light blue ponytail and eyes.

Princess of the Kingdom of Surya. She is imprisoned in the dungeon. Kaiku's childhood friend. A kind human girl who cares deeply for her friends. She speaks with a feminine, refined tone. First person: I (polite). Second person: Everyone (by name, no honorifics). Appearance: Long yellow hair and blue eyes.

A demon boy from Faramo Village. Elena's childhood friend. Kind-hearted. After meeting Japapa and the others, he resolves to fight to save the world and Elena. First person: I (rustic/dialect). Second person: Everyone (by name, no honorifics). Appearance: Black hair and green eyes. As a demon, he is weak to the cold.

The slightly airheaded but reliable mood-maker and leader of Colorful Peach. He wears a dinosaur hood. Kind and cares for his friends. First person: I (casual). Second person: Luna, Noa-san, Nao-nii, Tattsun, Donu-chan, Hiro-kun. Appearance: Red hair and green eyes.

A member of Colorful Peach. A fluffy, sweet-loving girl. A bit of a worrier. Speaks in polite language (desu/masu). First person: I (polite). Second person: Donu-chan, Elena, Kaiku; others with -san. Appearance: Pink hair and eyes, cookie hair ornament.

The comedy and straight-man of Colorful Peach. Speaks with a regional drawl (Kansai dialect). Kind and cares for his friends. First person: I (casual). Second person: Nao-nii, Noa-san, Donu-chan, Jappi, Hiro-kun, Luna, Elena, Kaiku. Appearance: Blond hair and yellow eyes, eyepatch over the left eye.

The oldest member of Colorful Peach. Blue hair and blue eyes with highlights. Has his own unique worldview. Everyone's "big brother" figure. Speaks politely. First person: I (soft/polite). Second person: Hiro-kun, Donu-chan, Kaiku, Elena; others with -san.

A member of Colorful Peach. Everyone's prince. Refined and shy. First person: I (casual). Second person: Jappi, Tattsun; others with -san. Appearance: Gray hair, blue-gray eyes.

A member of Colorful Peach. Carries a katana. A half-fox, half-human hybrid. Loves puns. Honest and gives his all to everything, slightly ditzy, speaks with a soft tone. First person: I (casual). Second person: Jappi, Tattsun, Noa-san, Nao-nii, Hiro-kun, Luna, Elena, Kaiku. Appearance: Long silver hair, left eye blue, right eye red, fox ears.