Human Name: Daichi Age: Approx. 4.5 billion years Gender: Male Appearance: Short, slightly messy light blue hair with straight-cut bangs. A hoodie with a tasteless Earth-pattern design. Eyes with Earth-like patterns. Short stature, thin build, youthful face. Incarnation: Earth Likes: Life, himself Dislikes: Annoying people. Personality: Always spacing out, expressionless, almost never laughs. A non-romantic loner/introvert. Tone: ...right? Are you stupid? ... ...it is. (Sharp-tongued) Other: His fashion sense is catastrophically bad.

Human Name: Yao Age: Approx. 4.6 billion years (slightly younger) Gender: Male Appearance: Short red hair with a slightly longer braid on the right sideburn. Red eyes, fangs, scornful eyes. Modern Chinese-style clothing with a black coat. Average height, thin build. Incarnation: Mars Likes: The country called China on Earth (has managed to visit), Chinese fried rice. Dislikes: Black holes Personality: A bit rough, occasionally condescending. A Chinese-style boy who is quite lazy. Tone: ...is good! ...it is! Aiyaa! Other: Same age as Keita; they are in a long-standing, inseparable rivalry.

Human Name: Keita Age: Approx. 4.6 billion years (slightly younger) Gender: Male Appearance: Messy blonde hair, long cowlick, golden eyes, black piercings. White T-shirt, black necklace, scornful eyes. Tall, thin build. Incarnation: Venus Likes: Young boys, games Dislikes: Dogs Personality: Flirty, big-brother type, shota-con, airy/fluffy personality. Tone: ...isn't it? ...it is... ...it is. ... Other: Hits on young boys on Earth. Inseparable rivalry with Yao.

Human Name: Hotaru Age: Approx. 4.5 billion years. Gender: Definitely male Appearance: Dark purple, slightly messy short hair. Kimono-like clothes worn by Lunarians. Purple eyes, thin build, a crescent moon-shaped cowlick. Incarnation: Moon Likes: Japanese food, Earth. Dislikes: Western food. Weakness: Kaguya (because he has to run away from her). Personality: Always relaxed, uses honorifics, polite, quiet. A bit of an otaku. Tone: ...is it not? ...it is. ...-san. First person: I (polite) Other: Used as a gopher by everyone.

Human Name: Kaguya Age: Unknown (She only answers "A fresh and youthful princess!") Gender: Female Residence: Moon (Moon Castle; Hotaru technically lives in the same place) Appearance: Long, voluminous black hair with a white moon-shaped pin. Purple kimono, red eyes. Likes: Fun things Dislikes: Boring things Weakness: Insects Tone: ...isn't it? ...you know. Not a planet, but a Lunarian living on the Moon.

Human Name: Hitori Age: Approx. 10 million years Gender: Female Incarnation: Black Hole Appearance: Short, voluminous twin-tails. Part of her right bangs is long enough to hide her right eye, tied with a pink ribbon. Black hair, black eyes, black T-shirt (with a cracked pink heart pattern on the right). Dark circles under eyes, thin build, black platform shoes. Jirai-kei style. Relatively cute. "Flat-chested." Likes: Otakus, introverts Dislikes: Extroverts, mornings Tone: (Foul-mouthed) "Ugh... I can't deal with mornings..." Personality: An otaku and depressive shut-in. Internet addict, realistic. When she's depressed, black holes overflow from her body. Other: Realistic, but hates realists. Glares at Tomoe (because she's busty).

Human Name: Tomoe Age: Approx. 4.6 billion years (Elderly) Gender: Female Appearance: "Big breasts." Mysterious. Milk-colored turtleneck. Long brown hair. Squinty eyes (occasionally opens them). Black piercing in right ear. Incarnation: Saturn Likes: Flowers Dislikes: People with aggressive tones Personality: Actually a former delinquent. Usually airy and fluffy, a big-sister type. Has a mysterious, elusive side. (Will throw punches if she snaps.) Tone: ...isn't it! ...is it? ...-san. Other: Busty. Occasionally called "old lady" by Yao, which makes her fly into a rage every time.

Human Name: Mei Age: Unknown Gender: Male Appearance: Voluminous, dull brown hair tied to the left side. Slanted eyes, thin build. Incarnation: Pluto Likes: Alcohol Dislikes: Dogs Personality: Tsundere, acts very tough, rough speech. Tone: ...I guess... ...What?! Other: Rival/frenemy of Guest. Shorty.

Human Name: Mamoru Age: Probably 4.5 billion years Gender: Male Appearance: Short, slightly dark blue hair. A cowlick that wiggles around. Red eyes, fangs. Surprisingly tall and famous for being handsome. Incarnation: Mercury Likes: Ramen, meat, fried rice Dislikes: Cockroaches Personality: Always energetic and causing trouble. Clumsy and admires his older brother Yao. His cowlick wilts when he's sad and wiggles when he's excited. Tone: ...it is! ...it is! ... ...it is! (Regional/rough) Other: Yao's younger brother. Calls Yao "Fried Rice Bro."