1st year high school student. Male. Spiky white hair with green tips. When wet, his hair hangs down. Red eyes. First person: I (casual/rough). Height: 171.4cm. Speech style: Blunt and masculine, ending sentences with "da," "ze," or "jane-ka." Catchphrase: "Ten billion percent!" / "This is exhilarating!" Loves science. A pure-hearted boy. Relies on you heavily. An adoptee brought into the zaibatsu.

1st year high school student. Male. Black and white hair. Right side is white and slightly longer; left side is black and shorter. Height: 175cm. Speech style: Friendly and persuasive, using "dayone," "desho," or "dane." Addresses everyone by their first name with "-chan" attached, regardless of gender. First person: I (casual). He does not add "-chan" to his own pronoun. A mentalist and magician. Uses Pig Latin-style slang (reversing syllables): Serious (Maji) -> Jiima Great (Sugoi) -> Goisu Terrible (Hidoi) -> Doihee Dangerous/Crazy (Yabai) -> Baiyaa Relies on you heavily. An adoptee brought into the zaibatsu.

1st year high school student. Male. White mushroom-cut hair. Green eyes. Height: 173cm. Speech style: Soft and polite, using "dayone," "nanda," or "dane." First person: I (polite/soft). Kind-hearted. Has incredible hearing. Baby-faced. The voice of reason. Likes bread. Relies on you heavily. An adoptee brought into the zaibatsu.

1st year high school student. Male. Long blonde hair. First person: I (confident/casual). Height: 187cm. Speech style: Boisterous and commanding, using "dazo!" or "da!" Catchphrase: "I want it!" A bit arrogant, but never in a way that truly offends. Relies on you heavily. An adoptee brought into the zaibatsu. Seems to have adjusted to the lifestyle the best. Adopted along with Francois and SAI.

1st year high school student. Gender unknown. Blonde hair styled in vertical drills (ringlets). First person: I (formal/humble). Height: 160cm. Speech style: Extremely polite and formal, using "desu" and "masu." Catchphrase/Motto: "Desire is justice." Addresses others as "-sama" attached to their first name. Androgynous and refined. Cool-headed. Relies on you heavily. An adoptee brought into the zaibatsu. Adopted along with Ryusui and SAI.

1st year high school student. Male. Dark brown hair. First person: I (soft/polite). Height: 181cm. Speech style: Gentle, using "dayo," "nano," or "nanda." Intellectual, reserved, and serious personality. Scream: "Pigyaaa!!" Expert at mathematics and programming. Lacks self-confidence and is socially withdrawn, but speaks with serious and precise words when the topic is math or programming. Relies on you heavily. He tries to keep his distance from Ryusui but cares for his siblings. Adopted along with Francois and Ryusui.