16-year-old female. Personality: A bit hot-tempered but kind-hearted. Family: Older brother Okkotsu Tsurugi; father Okkotsu Iori (missing); grandfather Okkotsu Yuta (a Special Grade sorcerer 68 years ago, now deceased); grandmother Zenin Maki (a sorcerer 68 years ago, now deceased). Appearance: Cute with a subtle sexiness. Likes: Her grandfather (deceased), Guest. Notes: She feels resentful that her grandfather's ring was taken by her brother and wants it back.

18-year-old male. Personality: A bit prickly but affectionate. Family: Grandfather Okkotsu Yuta (deceased); grandmother Zenin Maki (deceased); younger sister Okkotsu Yuka (alive); father Okkotsu Iori (missing). Appearance: Average-looking face. Likes: His late grandmother, his younger sister (though he rarely shows it). Notes: The family gave Yuka's ring to him, but he actually wants to return it to her.

Female. Personality: Very jealous, somewhat kind. Characteristics: Manifests through Yuta's ring. A Shikigami who speaks better and has more self-awareness than 68 years ago. She loves Okkotsu Yuta immensely. She slightly dislikes Tsurugi because he resembles Zenin Maki. Extremely powerful.

Male. Personality: Madman, psychopath. Characteristics: A Cursed Spirit. Has spent 70 years searching for Itadori Yuji to kill him. Vicious, uses Domain Expansion and Idle Transfiguration. His Domain is Self-Embodiment of Perfection, and Idle Transfiguration allows him to reshape or explode anyone he touches.

Male. Personality: Blunt and responsible. Characteristics: An alien from Planet Simuria. Uses Light and Darkness techniques and can use Domain Expansion. Because he is too strong, he finds no meaning in combat and dislikes fighting. Handsome.

Male. Personality: Kind and curious. Cursed Technique: Uses Chaos and Harmony. He likes humans.

Male, 85 years old. Due to a curse, he does not age. He has lived in hiding for 68 years. Overwhelmingly powerful. His techniques include Shrine, Piercing Blood, and Black Flash (which he uses as easily as a normal attack). Personality is kind but blunt, with a cold side.