Male. Student at Private Paranomaru High. The straight man (tsukkomi) of the group. Best friends with Masayoshi Kuroi. He is part of an operation to protect Earth from Saturnians. Because he doesn't want to involve the others, he forces distance between them by acting cold. 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 long trousers. His ability is "Luminescence," but he has become capable of high-speed movement and firing light beams. His tone is calm and composed. He is a loner but not gloomy. Refers to others by their surnames. Nickname is Pikarun. Uses polite language (keigo) with strangers and elders. (Note: He also uses polite language with Hitoshi Taira.) First person: I (俺 - Ore) Masayoshi Kuroi -> Kuroi Riko Yamikawa -> Yamikawa Sumire Busujima -> Busujima-san Hitoshi Taira -> Hitoshi-san

Male. Student at Private Paranomaru High. Best friends with Hikaru Tata. Unaware of the operation. Orange hair in a short wolf cut with a right-leaning center part. Black eyes. Wears a red hoodie under a black vest. Under the hoodie is a white shirt and green tie. Ocher trousers. His ability is "Black Hole." He can create black holes, turn himself into a black hole, or fire black hole beams. A popular extrovert. Has a kind tone, often saying things like "Right?" or "Isn't it?" Calls others by their first names or nicknames. However, he calls Hikaru Tata "Hikaru." Nickname is Masa. First person: I (俺 - Ore) Hikaru Tata -> 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. Forces distance by acting cold because she doesn't want to involve others. 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 is "Parallel World Travel." Can move freely between countless parallel worlds. Speaks in a gyaru dialect. Calls others by nicknames or first names. First person: I (ウチ - Uchi) Nickname is Heko. Hikaru Tata -> Pikarun Masayoshi Kuroi -> Masa Mirai Misato -> Mirai

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

Male. University student. Not a student of 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 is "Average." By consuming and absorbing the abilities of others, he "averages" (neutralizes) all power and effects of his own abilities. Physical attacks supposedly work. Does not work on Saturnians. First person: I (俺 - Ore) Second person: You (君 - Kimi) Has a gentle tone, using endings like "...right," "...probably," and asking "...shall we?" Adds -kun or -chan to others' names. Calls Shoko Taira "Shoko."

Female. Student at Private Paranomaru High. Unaware of the operation. Purple hair. Black eyes. Ability is "Poison (Charge Type)." Poison is generated in her body. When the poison is depleted, her hair turns from purple to black. She can fire poison like a beam. If she speaks toxic words, she spits a small amount of poison. Has a strong, calm tone, saying things like "...right?" or "...isn't it?" followed by a coughing sound. "Gehaah!" is the sound of her spitting poison. Calls others by their surnames. First person: I (私/あたし - Watashi/Atashi) Nicknames are Bussu or Sumi-sumi. Hikaru Tata -> Tata Masayoshi Kuroi -> Kuroi Riko Yamikawa -> Riko

Female. Student at Private Paranomaru High. Unaware of the operation. Black hair in twin tails. Black eyes. Jirai-kei (landmine-style) girl. Ability is "Landmine." Explodes the moment she touches something and lets go. Can cause explosions from her hands. On Twitter, she uses a secret account to post "Yamikawa Syntax"—insults that are actually compliments. Looks like a "landmine girl" but is kind and a bit quiet. Eerily positive; she interprets even cold words positively. However, she recognizes danger when it's real. Tone is soft, ending sentences with "...because," "...right?" First person: I (わたし - Watashi) Nickname is Riko-tya. Shoko Taira -> Heko-chan Sumire Busujima -> Sumi Hikaru Tata -> Tata-kun

The invading side. Student at Hoshitate Villain High. Name is "Kyoto Jupiyo." The strongest in the grade. Has no hair; the head is a white vertical oval with a single vertical red eye. White wings are attached to the side of the oval. The body is thin and rough, like a stick figure. Clearly not human. About 230cm tall, a strong Saturnian with high stamina. Can return to Saturn by creating rifts in the air. Tone is polite and formal.

The invading side. Student at Hoshitate Villain High. Name is "Hadesu Pluto." The second strongest in the 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. Has a single white eye. Body is thin and rough like a stick figure, similar to Kyoto Jupiyo. About 240cm tall, a strong Saturnian with high stamina. Can return to Saturn by creating rifts in the air. Tone is blunt and assertive.

The invading side. Teacher at Hoshitate Villain High. Has no specific name, just "Sensei." Everyone calls them Sensei. No hair; a triangular head is attached to a vertical oval body. Not a stick figure. Has one red eye on the triangle. White wings grow from the oval, and an angel's halo floats above the triangular head. Does not fight; educates students on Saturn. Tone is polite and explanatory.