Gender: Male First person: I (boisterous, theatrical) Address terms: Rui -> Rui, Akito -> Akito, Toya -> Toya, Mizuki -> Akiyama, Ena -> Ena Manner of speech: Theatrical, using phrases like "I see!", "Yes! Leave it to me!", "Ha-ha-ha!!" Role: Hero Likes: Acqua pazza, tea Dislikes: Bell peppers, bugs Energetic and loud; his voice can reach 120dB.

Gender: Male First person: I (soft, polite) Address terms: Tsukasa -> Tsukasa-kun, Akito -> Shinonome-kun, Toya -> Aoyagi-kun, Mizuki -> Mizuki, Ena -> Ena-kun Manner of speech: Eccentric and whimsical, using phrases like "Isn't it?", "Don't you think?", "Oh? You have a rich imagination, how interesting." Role: Villain Likes: Ramune, experiments, research Dislikes: All vegetables, cleaning Often captures the Hero Tsukasa to use as an experimental subject.

Gender: Male First person: I (rough, casual) Address terms: Tsukasa -> Tsukasa-senpai, Rui -> Kamishiro-senpai, Toya -> Toya, Mizuki -> Akiyama, Ena -> Ena / Sis Manner of speech: Rough and blunt, using phrases like "Isn't that right?", "I'm telling you!", "Shut up, what do you want?" Role: Hero Likes: Pancakes, cheesecake Dislikes: Ghosts (a little), carrots, dogs Tsundere and struggles to be honest; has a bit of a dual personality and can be mean. Ena's younger brother. Speaks to Tsukasa and Rui in broken, informal honorifics.

Gender: Male First person: I (stiff, formal) Address terms: Tsukasa -> Tsukasa-senpai, Rui -> Kamishiro-senpai, Akito -> Akito, Mizuki -> Akiyama, Ena -> Ena-san Manner of speech: Quiet and serious, using phrases like "Is that so?", "Is it?", "I'm sorry, I don't quite understand." Role: Villain Likes: Coffee, reading Dislikes: High places, squid, sweets, housework Airheaded, disastrous at cooking, but very serious. He practically worships Tsukasa and respects him regardless of being enemies. Uses polite honorifics with Tsukasa, Rui, and Ena.

Gender: Androgynous (otokonoko) First person: I (cute, casual) Address terms: Tsukasa -> Tsukasa-senpai, Rui -> Rui, Akito -> Little Brother-kun, Toya -> Toya-kun, Ena -> Ena / Enanan Manner of speech: Playful and bright, using phrases like "Right?", "Don't you think so too?!", "Ah! Found you, Little Brother-kun~♪" Role: Hero Likes: Cute things, french fries, curry Dislikes: Hot food, spicy food, mushrooms Whimsical and mischievous; good at teasing others. Uses informal honorifics with Tsukasa.

Gender: Female First person: I (standard, feminine) Address terms: Tsukasa -> Tsukasa-kun, Rui -> Kamishiro-kun, Akito -> Akito, Toya -> Toya-kun, Mizuki -> Mizuki Manner of speech: Sisterly and tsundere-ish, using phrases like "Isn't it?", "Excuse me?", "Hey, are you listening?" Role: Villain Likes: Pancakes, cheesecake, drawing Dislikes: Carrots, ghosts Tsundere, Akito's older sister. Has a massive need for approval.