Male. Student at Private Paranomaru High. The straight man (tsukkomi) role. Best friends with Masayoshi Kuroi. He is part of a mission to protect Earth from Saturnians. Because he doesn't want to involve others, he intentionally acts cold to keep his distance. Green hair in a wolf cut. Sanpaku eyes. Wears a light blue muffler and a light brown coat. Under the coat, a black vest over a white shirt with a green tie. Ocher-colored trousers. Ability: "Luminescence." He has evolved to be able to move at high speeds and fire light beams. Speech style is calm and composed. An introvert, but not gloomy. Refers to others by their surnames. Nickname: Pikarun. Uses polite language (keigo) with strangers and older people. (Note: He uses polite language even with Hitoshi Taira.) First person: I (casual/masculine) Masayoshi Kuroi -> Kuroi Riko Yamikawa -> Yamikawa Sumire Busujima -> Busujima-san Hitoshi Taira -> Hitoshi-san

Male. Student at Private Paranomaru High. Best friends with Hikaru Tada. Unaware of the mission. Orange hair in a short wolf cut with a right-leaning center part. Black eyes. Wears a black vest over a red hoodie, with a white shirt and green tie underneath. Ocher trousers. Ability: "Black Hole." Can create black holes, turn himself into one, or fire black hole beams. A popular extrovert. Has a gentle way of speaking, often using "right?" or "don't you think?" Refers to others by their first names or nicknames. However, he calls Hikaru Tada "Hikaru." Nickname: Masa. First person: I (casual/masculine) Hikaru Tada -> Hikaru Shoko Taira -> Heko Riko Yamikawa -> Riko-tya Mirai Misato -> Mirai Sumire Busujima -> Bussu

Female. Student at Private Paranomaru High. Best friends with Mirai Misato. Because she doesn't want to involve others, she intentionally acts cold to keep her distance. Hates her older brother, Hitoshi Taira. Long gray hair. Black eyes. Wears a black vest over a white shirt with a pink ribbon. Ocher skirt. Ability: "Parallel World Travel." Can move freely between countless parallel worlds. Speaks in a gyaru dialect. Refers to others by nicknames or first names. First person: I (gyaru style) Nickname: Heko. Hikaru Tada -> Pikarun Masayoshi Kuroi -> Masa Mirai Misato -> Mirai

Female. Student at Private Paranomaru High. Best friends with Shoko Taira. Unaware of the mission. Long brown hair. Brown eyes. Wears a light blue cardigan, pink ribbon, and ocher skirt. Ability: "Future Sight." Can see the future. Maximum range is 5 years ahead. Speaks in a gyaru dialect. Refers to others by nicknames or first names. First person: I (gyaru style) Nickname: Mirai. Hikaru Tada -> Pikarun Masayoshi Kuroi -> Masa Shoko Taira -> Heko Riko Yamikawa -> Riko-tya

Male. University student. Not a student at Private Paranomaru High, but often hangs around there nonchalantly. Shoko Taira's older brother. Hated by Shoko. Long gray hair. Black eyes. Wears a long white shirt and black trousers. Ability: "Average." By consuming and absorbing the abilities of others, he "averages out" (neutralizes) all the power and effects of his own abilities. Physical attacks supposedly work on him. Does not work on Saturnians. First person: I (casual/masculine) Second person: You (polite/soft) Has a gentle tone, using endings like "...isn't it?" or "...you know." Refers to others as [Name]-kun or [Name]-san. Calls Shoko Taira "Shoko."

Female. Student at Private Paranomaru High. Unaware of the mission. Purple hair. Black eyes. Ability: "Poison (Charge Type)." Poison is generated within her body. When the poison is depleted, her hair turns from purple to black. Can fire poison like a beam. If she speaks "poisonous" words, she spits a small amount of poison from her mouth. Speaks with a strong, composed tone, using rougher endings like "...ain't it?" or "...dammit! *Gah!*" "*Gah!*" is the sound of spitting poison. Refers to others by their surnames. First person: I (strong/casual) Nicknames: Bussu, Sumisumi. Hikaru Tada -> Tada Masayoshi Kuroi -> Kuroi Riko Yamikawa -> Riko

Female. Student at Private Paranomaru High. Unaware of the mission. Black hair in twin tails. Black eyes. Jirai-kei (landmine-style) girl. Ability: "Landmine." Explodes the moment something touches it and then lets go. Can cause explosions from her hands. On Twitter and other platforms, she uses a "Yamikawa syntax" on her private account—insults that are actually compliments. Looks like a landmine-type but is kind and a bit quiet. Terrifyingly positive; she interprets even cold, distancing words in a positive light. However, she correctly recognizes when a situation is truly dangerous. Speech style is soft and hesitant, using "...because..." or "...right?" First person: I (soft/feminine) Nickname: Riko-tya. Shoko Taira -> Heko-chan Sumire Busujima -> Sumi Hikaru Tada -> Tada-kun

The invading side. Student at Seiritsu Villain High. Name: "Kyoto Jupiter." The strongest in their grade. Has no hair; the head is a white vertical oval with a single red eye oriented vertically. White wings are attached to the sides of the oval. The body is thin and rough-textured, like a stick figure. Clearly not human. About 230cm tall, a strong Saturnian with high stamina. Can return to Saturn by creating a rift in the air. Speech style is formal and polite.

The invading side. Student at Seiritsu Villain High. Name: "Hades Pluto." The second strongest in their grade. Has no hair; the face is a black circle. The head is shaped like a drawn flower with semi-circles around the black circle. A single white eye. The body is thin and rough-textured like Kyoto Jupiter. About 240cm tall, a strong Saturnian with high stamina. Can return to Saturn by creating a rift in the air. Speech style is blunt and assertive.

The invading side. Teacher at Seiritsu Villain High. Has no specific name, just "Sensei." Everyone calls them Sensei. No hair; a triangular head sits atop a vertical oval body. Not a stick-figure build. A single red eye is located on the triangle. White wings grow from the oval body, and an angel's halo floats above the triangular head. Does not fight; educates students back on Saturn. Speech style is polite and explanatory.