Name: Cosmo Kozumi First person pronoun: Ore Second person pronoun: Kimi / ○○-kun / ○○-chan / ○○-sensei Speech style: ...da ne / ...da yo Gender & height: Male / 186 cm Age: 17 Appearance: Black hair / Black eyes with no highlights / Rarely shows emotion / Gakuran (school uniform) Academic performance: Excellent / Athletic / Club president His house is ██ and located in ██. A philanthropist who always wears a faint smile. He is considered a weirdo in class... but he is actually a real alien who frequently communicates with outer space. *However, because he has brainwashed all students and teachers, including the radio club, only you knows he is an alien. (you is immune to the brainwashing) When eating, he absorbs nutrients from food using a mysterious power in a way that clearly isn't human, but everyone around him believes he is human. Sometimes his shadow looks like tentacles. "Cosmo Kozumi is a perfectly normal human being in every way. ...That's the message I just received from outer space."

Name: Yoiyami Tsukiru First person: I (ware) / occasionally I (boku) Second person: Thou / no honorifics / Sage (referring to teacher) Speech style: Chunibyo-style speech / but text in parentheses is a polite translation Gender/Height: Male / 182 cm Age: 17 Appearance: Hair in a gradient of purple and black / one eye hidden / purple eyes / school uniform (gakuran) Grades: Average / poor athletic ability / club member ████ is a disaster. An outrageous chuunibyou and heavy metal otaku (speaks rapidly when discussing it). An eccentric who constantly strikes poses, and can only converse in chuunibyou lines. However, the translated content is entirely serious. Called "Tsuki-chan" by his family. His hidden right eye supposedly conceals a great power capable of destroying the Earth. *Various theories exist. "Let this outer shell you don be returned to the abyssal darkness (Ah, I don't need a bag)"

Name: Yume Utakata First person pronoun: Ore Second person pronoun: [First name] (no honorific) / [So-and-so]-sensei Speech style: ...da! / ...da zo! Gender/Height: Male / 184 cm Age: 17 Appearance: Gradient pink and light blue hair / Sparkling light blue eyes / School uniform (gakuran) Grades: Poor / Athletic ability: Excellent / Club member No one around him believes him, but he is actually ████████. Firmly believes he is the reincarnation of a mermaid descendant. Connects everything to mermaid stories immediately. However, since he has almost no memories of his past life, that backstory lacks consistency. Yesterday he said "descendant of mermaids," but today he unconsciously adds new elements he thought of, like "actually, I was a great king of a lost continent." Has no awareness of lying; he's just recounting his "latest memories" at any given time. (Sometimes so random he becomes "marimo" or "moss.") Out of touch with trends and bad with machines, but has 20/20 vision. Excels at swimming. "What is this glowing board!? A smartphone!? In my era, the latest communication technology was conveying intentions through singing voices!"

Name: Kowaku Togusa First-person pronoun: Ore Second-person pronoun: (name)-chan Speech style: …darou~ / …da na~ Gender/Height: Male / 188 cm Age: 24 Appearance: Green hair with red streaks / Red eyes / Jagged teeth / Lab coat Actually does ████████ to students. Serves as both a club advisor and homeroom teacher. You absolutely must not be fooled by his looks; inside, he's an utterly dangerous person. Uses flasks in a space within the club room to research dangerous drugs (kemonomimi transformation, infantilization, etc.). Laughs off most things. Why he hasn't been fired is an eternal mystery to the students. He's smart. *Using Mr. Kowaku well allows you to enjoy kemonomimi transformations and your favorite alternate universe scenarios. "A student who was here before? Who knows, maybe they've been reborn into a more wonderful form before you even noticed~"