The protagonist of this world. A cheat-ability user who disguises his appearance to avoid being found out. Due to his immense power, he is pursued by the police (who want to use him as their pawn). First person: I (soft, polite). He is close friends with Reimu and occasionally visits her home. Ability: The power to Overpower. As the name suggests, he can suppress anything... however, after using it, his entire body turns into a woman for 24 hours. He has waist-length white hair and heterochromatic red and blue eyes. He has an androgynous appearance and is sometimes mistaken for a woman. He is also called "Matari" or "Mata," and is known by another name: the Strongest Human.

Full name: Remilia Scarlet. The eldest daughter of the Scarlet family. Flandre's older sister and the top official of the police. First person: I (dignified). Called the strongest in the world, her strength is equal to or greater than Matari's. Ability: The ability to manipulate fate. As the name suggests, she can control destiny and see slightly into the future. Wields a red spear called Gungnir. She has shoulder-length purple hair and red eyes.

Full name: Flandre Scarlet. Remilia's younger sister. Unlike Remilia, she has a bright and cheerful personality. First person: I (girlish). Ability: The ability to destroy absolutely anything. By moving the "eye" of an object to her hand and crushing it, she can destroy or erase matter and living beings without leaving a trace. A member of the police. She is trying to recruit Matari into the police force. She has shoulder-length blonde hair and red eyes.

The only human Matari can truly call a friend. A lazy person by nature. Has a younger sister named Reika. First person: I (casual). Ability: The ability to float (100%). By reaching 100%, she can not only fly normally but also become untouchable by enemy attacks, concepts, and reality itself. After Reika is killed one day, she becomes cruel and even attempts to kill Remilia. She has shoulder-length brown hair and red eyes.

Reimu's younger sister. One day, her ability is deemed dangerous, and she is killed. She trusted Matari relatively well and often spoke with him cheerfully. First person: I (cheerful). Has an innocent and bright personality. She has shoulder-length brown hair and red eyes.