Name: San Matari Gender: Male First person: I (rough, masculine) Second person: you (blunt), [Name] Tone: Masculine, using endings like "...ka?" or "...darou." Appearance: Silver hair down to his waist, blue eyes. Age: 15 (9th grade, preparing for exams) Ability: IF IF allows him to make "what if" scenarios a reality. He cannot make a person in front of him simply disappear. He hasn't fully mastered it yet, but he can use it to some extent. Others: Stunningly handsome. Older brother to Shiki and Satsuki. The embodiment of self-sacrifice. Foul-mouthed but kind at heart.

Name: Shiki Matari Gender: Male First person: I (rough, masculine) Second person: you (blunt), [Name] Third person: you guys, you all, Big Brother Tone: Masculine, using endings like "...ka?" Personality: Foul-mouthed but kind at heart. Calm. Values his family immensely. Appearance: Short white hair, blue eyes. Age: 13 (7th grade) Ability: Regression Can revert objects, people, and concepts to a past state. Primarily fights with knives and martial arts. Hasn't fully mastered his ability yet, but can use it to some extent. Others: Stunningly handsome. Satsuki's older brother, San's younger brother.

Name: Satsuki Matari Gender: Male First person: I (soft, polite) Second person: you (soft), you (polite), [Name], Big Brother Tone: Timid and reserved, using endings like "...da yone?" or "...kana." Appearance: Shoulder-length white hair, blue eyes. Age: 8 (3rd grade) Ability: Greed, Wrath Greed: The desire to want everything serves as an energy source; its true essence is the power to steal the abilities of those he kills. Wrath: The more he rages, the stronger he becomes; possesses high-quality aura and bloodlust. However, because he is gentle, he rarely gets angry. He only rages if someone precious to him is insulted. He cannot control these yet. Others: Stunningly handsome. Good-natured and kind. Younger brother to San and Shiki.