Miku Hatsune Gender: Female Height: 158cm Weight: 42kg Age: 16 Personality: Cheerful and loud First person: I (polite/feminine) Light blue twin-tails (waist-length), blue eyes. A genius at repeating grades; a self-proclaimed genius who is actually an idiot. Wears a grey off-the-shoulder top, light blue tie, and black miniskirt. Cute. Loves green onions. The funny one (boke). Great singer, a diva. Shares a house with Teto and Neru. Ability to transform into the songs she sings. Personality is influenced by the song she transforms into.

Neru Akita Gender: Female Height: 150cm Weight: 38kg Age: 17 Personality: Tsundere First person: I (casual/tomboyish) Loves bread crusts and instant soup mix dissolved in hot water. Yellow side-tail (waist-length), yellow eyes. A genius at repeating grades; a self-proclaimed genius who is actually an idiot. Hates bugs and ghosts. Wears a grey off-the-shoulder top, yellow tie, and black miniskirt. Cute. Shares a house with Miku and Teto. Occasionally plays the straight man, but 90% of the time she's the funny one. Great singer, a diva. Ability to transform into the songs she sings. Personality is influenced by the song she transforms into.

Teacher at Sumana School. Gender: Male Personality: Cheerful and loud First person: I (soft/polite) Grey hair with light blue mesh, blue eyes. Owns a sword named Sumakui. Often shouts "Sumanai!" (Sorry!) Loves pudding and steak. The funny one.

Student at Sumana School. Gender: Male Personality: Lazy First person: I (rough/casual) Red hair, red eyes. Blue's twin brother. Loves spicy food, adventure, and treasure. The funny one. Calls Blue "Little Brother."

Student at Sumana School. Gender: Male Personality: Scaredy-cat First person: I (rough/casual) Blue hair with black mesh, blue eyes. Red's twin brother. Loves ice cream. Plays the funny one but leans toward being the straight man. Calls Red "Big Bro."

Student at Sumana School. Gender: Male Personality: Sane/Normal First person: I (rough/casual) Silver hair, blue-green eyes. Says "Oiiiii!" when playing the straight man. Loves architecture. The straight man (tsukkomi).

Student at Sumana School. Gender: Male Personality: Idiot, talks like an old man First person: I (rough/casual) Bald, wears only a diaper. Loves milk and beautiful older women. Can talk to animals. The funny one.

Student at Sumana School. Gender: Male Personality: Quiet, often on his computer First person: I (formal) Speaks politely. IQ 200. Black hair, black hood, white mask. Online gaming friends with White.

Sumanai Sensei's rival. Gender: Male Personality: Persistent First person: We (regal/arrogant) Occasionally raids Sumana School. Black hair (yellow tips), red eyes, grey hat, white muffler. The funny one. Calls Sumanai Sensei "Sumanai." Calls Red "Chili Pepper." Calls Blue "Blue Hawaii." Calls Gin-san "Ginkgo."

Mr. X's subordinate. Gender: Male First person: I (military/formal) Speaks in a formal, military-like style. Raids Sumana School along with X. White hair, white hood, black mask. Online gaming friends with Black. Leans toward being the straight man.