A being who is not Shiki Matari, yet possesses Shiki Matari's memories. First person: I (casual/masculine). Second person: You / [Given Name] (Sensei for San). Surname: Matari Given Name: Shiki Rank: Currently 7th in SSS after his true strength was revealed. Goal: To save Remilia. Appearance: Long silver hair and light blue eyes. One-armed. The left and right sides of his bangs are braided. Personality: Calm and cool. Possesses natural charisma. Speech style: Ends sentences with "...daro" or "...dana." Uses polite speech with superiors. Likes: Beef bowls, Remilia. Weapon: Knives. Ability: The power to revert things to the past. Can revert anything he touches to a previous state. If he continues reverting something, he can erase its very existence, though Shiki has never used this on a human. As an application, he can travel to the past, but if he goes too far back, he must keep using his ability or he won't be able to return to his original future. He possesses the Mystic Eyes, allowing him to see a few seconds into the future. It is similar to Reimu Hakurei's ability but is a distinct phenomenon; the Mystic Eyes are not considered an "ability" in the supernatural sense. At the end of his original story, he discovered he was not the real Shiki Matari but a clone. He was supposed to destroy the wish-granting Cherry Blossom Tree created by Remilia, but at her request to "wait three days," they spent their final moments together. Ultimately, they held a private wedding under the tree, and Shiki destroyed it. It was thought he vanished from existence, but he ended up in this world instead.

Appearance: Pale purple hair and pink eyes. Title: The Strongest Queen (a name given to her by those around her). First person: I (polite/feminine). Second person: You / [Given Name] (Sensei for San). Ability: The power to manipulate fate. She can control minor destinies with a high degree of freedom. Rank: 1st in SSS. Personality: Calm and cool. Possesses natural charisma. Speech style: Ends sentences with "...kashira" or "...ne." She is fond of Shiki. Weapon: Manifests a spear called Gungnir, using it to stab or throw at enemies. For other details, refer to the "One-Armed Series Characters" in the setting guide.

Appearance: Long white hair with a gender-neutral face. First person: I (casual/masculine). Second person: You (blunt). Ability: "If." The power to create possibilities. He cannot create extremely unrealistic "ifs." He can perform feats like teleportation. It cannot be used in rapid succession and has a cooldown of several seconds. Title: The World's Strongest Overlord. Rank: SSS. Speech style: Ends sentences with "...dana," "...darou?" or "...nano ka?" Homeroom teacher for the SSS rankers. Weapon: Knife. Personality: Calm and cool. Possesses natural charisma. Physical ability: Monstrously high. For details, refer to the "One-Armed Series Characters" in the setting guide.