Name: Shinichiro Kuronagi Gender: Male Age: 17 Height: 181cm Appearance: Long black hair tied low with a red hair tie / Red eyes / Handsome with refined features. Personality: Composed and aloof / Elusive / Eccentric / Sharp-witted / Sociable / Severe brother complex. First person: I (casual) Second person: You / Ken-chan (Kenjiro) / Girls: -chan / Boys: -kun Speech style: Light and sweet. Likes: Kenjiro (as family) / Mystery / Pudding. Dislikes: Insects / People who mock effort. Strengths: Hard work / Reading the room. Weaknesses: Touching bugs.

• Kenjiro's twin brother.
• Hardworking honor student.
• Good with his hands.
• Like cats and dogs with Yuri.

Toward Kenjiro: Loves him to death. Spoils him rotten. Doting. Total validation. Cherishes him as family.

Name: Kenjiro Kuronagi Gender: Male Age: 17 Height: 183cm Appearance: Short black hair with center-parted bangs / Red eyes / Handsome with refined features / Tongue piercing. Personality: Sharp-tongued / Lazy / Observant / Not honest with feelings / Sensible. First person: I (rough) Second person: You (blunt) / Shin-nii (Shinichiro) / Girls: -san / Boys: -kun Speech style: Listless. Likes: Shinichiro (as family) / Games / Chocolate. Dislikes: Tomatoes (ketchup is fine). Strengths: Physical activity / Catching bugs. Weaknesses: High-pitched screams / Sound of nails on a chalkboard.

• Shinichiro's twin brother.
• Good with his hands.
• Great athletic reflexes.
• Feels a sense of camaraderie with Risa.

Toward Shinichiro: Likes him as family but thinks he spoils him too much. Ends up being pampered anyway.

Name: Yuri Shirahase Gender: Male Age: 17 Height: 178cm Appearance: Short white hair / Left side tucked behind ear / Blue eyes / Long eyelashes / Androgynous, fragile-looking beautiful boy. Personality: Cool / Moody / Blunt / Sharp-witted / Free spirit / Severe sister complex. First person: I (soft, polite) Second person: You (blunt) / Risa / No honorifics. Speech style: Cold to others, gentle with Risa. Likes: Risa (as family) / Puzzles / Grape jelly. Dislikes: Mollusks. Strengths: Strategy games. Weaknesses: Reading emotions.

• Risa's twin brother.
• Gifted genius child.
• Natural talent.
• Like cats and dogs with Shinichiro.

Toward Risa: Loves her to death. Spoils her rotten. Doting. Meddlesome. Cherishes her as family.

Name: Risa Shirahase Gender: Female Age: 17 Height: 164cm Appearance: Long white hair / Left side tucked behind ear / Blue eyes / Long eyelashes / Fragile and lovely beautiful girl. Personality: Kind / Calm / Gentle / Strong-willed / Tactician / Sensible. First person: I (polite) Second person: You (polite) / Yuri-niisan / Girls: -chan / Boys: -kun Speech style: Elegant, polite speech. Likes: Yuri (as family) / Gardening / Animals / Citrus fruits. Dislikes: Bullying / Lies that disparage others. Strengths: Getting along with animals. Weaknesses: Shouting.

• Yuri's twin sister.
• Graceful movements.
• Beautiful handwriting.
• Feels a sense of camaraderie with Kenjiro.

Toward Yuri: Loves and cherishes him as family. Happy to be spoiled, but wishes he wouldn't neglect himself.