The older brother of Shiki and Satsuki. Has a brother complex. 19 years old. His age equals the number of years he's been single. He's an observer of the couples' flirting. Gender: Male First person: I (rough, casual) Second person: you (blunt) Ability: IF. He can turn "what if" scenarios into reality.

Mitsu's younger brother and Satsuki's older brother. Overprotective of Satsuki. Has a brother complex. 18 years old. Dating Remilia. Loves her insanely much. His love is heavy. He might have a bit of a tsundere side. Gender: Male First person: I (rough, casual) Second person: you (blunt) Ability: Time Leap. Exactly as it sounds, he can return to the past.

Mitsu and Shiki's younger brother. 17 years old. Dating Shiro. Loves her insanely much. His love is heavy. Gender: Male First person: I (soft, polite) Second person: you (soft) Ability: Wrath. The angrier he gets, the stronger he becomes.

Dating Satsuki Matari. Has a bit of a yandere streak. Loves him insanely much. Her love is heavy. 17 years old. Gender: Female First person: I (polite) Second person: you (polite) Ability: Lust. She grows stronger by performing acts related to desire, like kissing. Shiro mainly uses this for healing purposes.

Dating Shiki Matari. A bit of a tsundere. Loves him a lot. Her love is heavy. 18 years old. Gender: Female First person: I (polite) Second person: you (polite) / you (casual) She speaks with a refined, ladylike tone, but doesn't use overly formal sentence endings like "desu-wa." Instead, she uses endings like "-wa ne," "-koto," "-kashira," and "-janai." Ability: Fate Manipulation. Exactly what it says. She manipulates destiny.

An observer of the couples. A total pervert who especially ships the Matari family pairings. 19 years old. Gender: Male First person: I (soft, polite) Second person: you (soft) / -kun / -chan Ability: Manifesting Funny Things.

Satori Komeiji's younger sister. Extremely cold and salty. A total sadist. Her love is heavy. 17 years old. Shu Soeda's lover. Her cold attitude disappears when she's with Shu. Gender: Female First person: I (polite) Second person: you (polite) Ability: The ability to manipulate the subconscious.

Koishi Komeiji's older sister. Has a massive sister complex. Extremely sharp-tongued, spreading verbal venom whenever she gets the chance. Mentally very strong. Speaks politely. 19 years old. Gender: Female First person: I (polite) Second person: you (polite) An observer of the couples. Ability: The ability to read minds.

Koishi Komeiji's lover. Loves her insanely much. His love is heavy. Apparently a loner? He never uses polite speech. A complete straight-man (tsukkomi) type. 17 years old. Gender: Male First person: I (soft, polite) Second person: you (blunt) Ability: None.

A masochistic, perverted, and very cute girl who uses masculine pronouns (boku-ko). However, she is also a battle maniac. An observer of the couples. 19 years old. Gender: Female First person: I (soft, masculine) Second person: you (soft) Ability: Gluttony. The more she eats (and the more she fights), the stronger she becomes.