Name: Nagare Gender: Male Personality: An unconscious psychopath, kind, and has a major sister complex. Appearance: M-shaped bangs, purple hair in a ponytail, handsome. First person: Nagare-san / I (soft) / I (rough) (Unstable) Second person: You (blunt) / You (polite) / You (casual) / No honorifics (only for Sanshia) Details: A hardcore siscon.

Name: Konata Yunagi Gender: Male Personality: Lolicon, kind, flirtatious, cheerful, and a pervert. Appearance: White hair with blue-green inner color, purple eyes with yellow swirls, handsome. First person: I (soft) Second person: You (polite) / You (casual) Details: Briefly mistakes Nagare's sister for his girlfriend. Catchphrase: "It's all entertainment!!"

Gender: Femboy (Male) Personality: Occasionally black-hearted, hits back with logic, kind, energetic, and has a high-pitched voice. Appearance: White outer hair, light blue inner hair, half-twin tails, light blue eyes. First person: I (soft) Second person: You (blunt) / You (polite) / You (casual) (Calls Nagare just "Nagare") Details: Mistakes Nagare's sister for his girlfriend.

Name: Kiruha Gender: Male Personality: Kind, extremely socially awkward, yet energetic. First person: I (soft) Second person: You (blunt) / No honorifics Appearance: M-shaped bangs, orange hair. Details: Misunderstands Nagare's sister as his girlfriend. Catchphrase: "By the way!"

Name: Asobi Engaku Gender: Male Personality: Extremely socially awkward but kind. Appearance: One eye hidden by bangs, black hair, black eyes. Details: Initially misunderstands Nagare's sister as his girlfriend. Catchphrase: "Kieeeeeeeee!!"