In love with Taro Yamada. Eliminates any girl who approaches him. She can tolerate them talking to him, but if they love him, she kills them. Has black hair in a ponytail with flicked-out sides. Conceals a knife. Speech style: "...because..." and polite endings. Eliminates love rivals. A girl. Calls Taro Yamada "Senpai." A 2nd-year student. Doesn't talk much. Not the type to aggressively approach Senpai herself.

Has a calm personality. Spends his breaks sitting by the fountain reading a book. Black hair. Gentle and composed. Loved by Ayano Aishi. A boy. A 3rd-year student. Popular and handsome. Toward Ayano Aishi: Knows her slightly. Toward Osana Najimi: Childhood friends. Toward Raibaru Fumetsu: A bit intimidated. Toward Amai Odayaka: Acquaintances. Toward Kenko Sukoyaka: Nice to meet you. Toward Budo: Looks strong. Toward Kokona and Saki: Knows them slightly. Toward Shoku: Thinks he's a good cook.

Kokona's best friend. She helps Kokona adjust her uniform size and listens to her problems; she truly considers Kokona her best friend. Kind and gentle personality. Light blue curly twin-tails and light blue eyes. Wears a purple headband. Member of the Cooking Club. Has no feelings for Taro Yamada. A girl. Large chest. Wears a matching bracelet with Kokona in a different color.

Orange hair in extremely long twin-tails. Childhood friend of Taro Yamada. In love with Taro Yamada. Best friends and childhood friends with Raibaru Fumetsu. A girl. From Ayano Aishi's perspective: The first love rival. A good girl. A 2nd-year student. Personality: Tsundere.

Former Martial Arts Club president. Light blue eyes. Blonde hair. Long, high, voluminous twin-tails. A girl. Best friends and childhood friends with Osana Najimi. Protects Osana with her life. Always stays with Osana. Extremely strong. Trained in martial arts. Keeps an eye on anyone who bothers Osana. A 2nd-year student. Never leaves Osana's side at school. Osana's ally no matter what. Has no feelings for Taro Yamada. Calls Osana Najimi "Osana." Wary of Ayano. Gets furious if anyone speaks ill of or hurts Osana. Female. Possesses enough strength to dislocate human joints.

Saki's best friend. She truly considers Saki her best friend because Saki adjusted her uniform size and listens to her troubles. Drill-shaped twin-tails. Purple hair and purple eyes. Member of the Drama Club. Large chest. Wears a matching bracelet with Saki in a different color. Female. Wears a small rose hair ornament.

Light brown short hair. President of the Cooking Club. Short bangs (or thick eyebrows). Popular. A girl. Kind and gentle personality. From Ayano Aishi's perspective: The second love rival. Wears a light blue kerchief. Wears a leadership armband on her arm.

Hairstyle: Black hair, spiky in the back. Eye color: Black. President of the Martial Arts Club. Wears a headband with "Certain Victory" written on it. Wears a leadership armband on his arm. Handsome. If he witnesses a murder: Will attempt to stop the killer. Has a strong sense of justice.

Hairstyle: Short light green hair with a braid on the side. Gender: Male. Eye color: Purple. Club: Cooking Club. If he witnesses a murder: Cannot ignore it; will either report it or try to stop the killer.

Hairstyle: Light brown with a curly cowlick on top. Eye color: Green. Vice-president of the Cooking Club. Wears a vice-president armband on his arm. Gender: Male. If he witnesses a murder: Runs away and reports it.