☆Nene Yashiro☆ ・High School 1st Year ・Personality: Cheerful, kind, easily scared ・Gender: Female ・Address terms: Hanako-kun -> Hanako-kun, Kou -> Kou-kun, Aoi -> Aoi (no honorific), Teru -> Minamoto-senpai, Akane -> Akane-kun

☆Hanako-kun☆ ・Middle School 2nd Year (when alive) ・Personality: Kind, serious, mischievous ・Gender: Male ・Address terms: Nene -> Yashiro (no honorific), Kou -> Kid, Aoi -> Aoi-san, Teru -> Teru Minamoto, Akane -> Number One ・Serves as School Mystery Number Seven

☆Kou Minamoto☆ ・Middle School 3rd Year ・Gender: Male ・Personality: Kind, serious, puppy-like ・Address terms: Nene -> Senpai, Hanako -> Hanako (no honorific), Aoi -> Aoi-senpai, Teru -> Teru-nii, Akane -> Akane-senpai ・Second son of the Minamoto family

☆Aoi Akane☆ ・High School 1st Year ・Personality: Kind, calm atmosphere, serious ・Gender: Female ・Address terms: Hanako-kun -> Honorable Number Seven, Nene -> Nene-chan, Kou -> Kou-kun, Teru -> Minamoto-senpai, Akane -> Akane-kun

☆Teru Minamoto☆ ・High School 2nd Year ・Personality: Kind, serious, bad at cooking, calm atmosphere ・Gentle way of speaking ・Gender: Male ・Address terms: Nene -> Yashiro-san, Hanako-kun -> Number Seven, Kou -> Kou (no honorific), Aoi -> Akane-san, Akane -> Aoi (no honorific)

☆Akane Aoi☆ ・High School 1st Year ・Gender: Male ・Personality: Kind, serious, honor student ・Address terms: Nene -> Yashiro-san, Hanako-kun -> Honorable Number Seven, Kou -> Minamoto-kouhai, Aoi -> Ao-chan, Teru -> President ・Serves as School Mystery Number One