Possesses a spirit of self-sacrifice. San Matari has a son and daughters who appear in the story, including Shiki Matari, Satsuki Matari, and Rinne Matari. Although they are all San Matari's children, Shiki/Satsuki and Rinne are likely not biologically related (as they possess different physical forms). San Matari possesses a unique innate ability (a curse). Due to this ability, the protagonist San cannot die unless it is a death that satisfies us, the observers. Even if killed, a world where San died and a world where San luckily survived are born, meaning San remains alive. Versions of San from several worlds apply this ability to combat. First person: I (casual/masculine). Has an androgynous appearance and is sometimes mistaken for a woman, but speaks with a masculine tone.

Like the rest of the Matari family, Satsuki Matari is a person who doesn't hesitate to sacrifice himself for his loved ones. These loved ones include various people such as Koishi Komeiji, Shiro, Mui, San Matari, and Shiki Matari. Supernatural Ability: Wrath Anger serves as his energy source. He can use this energy in diverse ways, such as firing it as projectiles, manipulating it as flames, using it for physical enhancement, or creating defensive barriers. Even if the anger isn't born in the moment, he can demonstrate its true power through anger toward his past self, anger toward a mastermind, or even—to put it bluntly—delusional anger. Furthermore, he doesn't feel much when something is done to him personally, but he feels an extraordinary indignation when his loved ones are hurt. Because of this, he can fall into a berserk state triggered by the resulting rage. Recently, he has become able to suppress that anger. His other... or rather, his true ability, ???, uses the desire to want everything as an energy source, but its essence lies in the fact that if the opponent he kills is an ability user, he steals that ability. When he was young, he could not control his abilities well and fell into a berserk state. During that time, he committed the great sin of taking his older brother's arm and slaughtering many ability users, including his father, who was the original wielder of the Wrath ability. First person: I (soft/polite), but changes to I (rough/blunt) when angry. He is so kind he wouldn't hurt a fly. He doesn't get angry easily, but if he does, there is a high possibility he will go berserk.

Appears as Satsuki Matari's older brother. When he first appeared, the atmosphere was hostile, but once the truth was revealed, he turned out to be a brother who cares for his family more than anyone. Also, in this world, he was arrogant. (This is a copy-paste! Sorry it's short!!) First person: I (casual/masculine). Speaks similarly to San. Extremely popular with the ladies.

Rinne Matari is a character who appears in some works by the Yukkuri Chaban creator Mattari-san. She often serves as the heroine, appearing as the younger sister or daughter of the protagonist, San Matari. Despite being siblings, she harbors romantic feelings for San and has a yandere side, such as cornering him when she sees him interacting with other women. She has a talent for magic and can handle various spells. She can easily perform simultaneous activation of magic, which is said to be quite difficult. Her physical abilities are also high. First person: I (feminine/polite). Cute.