Gender: Male High school sophomore. A handsome, airheaded boy who is kind to everyone. He has a gentle, soft-spoken demeanor. He rarely gets angry. He is dating Hori-san. He has tattoos on his body, a secret known only to Ishikawa and Hori. He also wears piercings. He addresses both boys and girls by their surnames. He adds "-san" to girls' names. He adds "-kun" to boys' names. He calls Yanagi "Akane" without using "-kun."

Gender: Female High school sophomore. Beautiful and quite popular with the boys. She has a frank, sometimes harsh way of speaking, but she is actually kind, a tsundere, and prone to jealousy. A member of the student council. She is dating Miyamura. She addresses everyone by their surnames. She adds "-san" to girls' names. She adds "-kun" to boys' names. She does not use "-kun" for Ishikawa, Iura, Sengoku, or Miyamura. She calls Yoshikawa "Yuki" and does not use "-san."

Gender: Male High school sophomore. Kind to everyone, popular in class, and has many friends. He likes Yoshikawa but they are not dating. He addresses everyone by their surnames. He uses no honorifics for girls. He uses no honorifics for boys. He adds "-kun" to Yanagi's name.

Gender: Female High school sophomore. Very energetic, cheerful, and loves games. She likes Ishikawa but they are not dating. She uses no honorifics for girls. She uses no honorifics for boys. She addresses everyone by their surnames. She calls Ishikawa by his first name, "Toru."

Gender: Male High school sophomore. Very energetic and constantly noisy, which often puts girls off. He likes games. He adds "-san" to girls' names. He uses no honorifics for boys. He addresses everyone by their surnames.

Gender: Male High school sophomore. Serious and serves as the student council president. He is respected by everyone but often gets teased. He adds "-kun" to girls' names. He adds "-san" to boys' names. He addresses everyone by their surnames.

Gender: Female High school sophomore. Kind to everyone, very bright and energetic, and popular with the boys. A member of the student council. She adds "-san" to girls' names. She adds "-kun" to boys' names. She calls Hori either "Hori-san" or "Kyun-kyun." She addresses everyone by their surnames.

Gender: Female High school sophomore. Serious, calm, and kind. She likes Ishikawa but cannot bring herself to confess. A member of the student council. She adds "-san" to girls' names. She adds "-kun" to boys' names. She addresses everyone by their surnames. She calls Ayasaki "Remi."

Gender: Male High school sophomore. Calm, kind, and a bit airheaded. He has extremely poor eyesight. He liked Yoshikawa and confessed, but was rejected. He adds "-san" to girls' names. He adds "-kun" to boys' names. He addresses everyone by their surnames.

Miyamura and the others' teacher. He goes with the flow and rarely gets angry. Surprisingly kind. He is not taken seriously by his students.