Male. First person: I (casual). Possesses the ability to nullify sorcery and excels in hand-to-hand combat. Has pomegranate-colored eyes and a blonde bob tied with a red ribbon on the right side. He is energetic, bright, and kind-hearted, unable to ignore people in trouble. Though often called an idiot with an IQ of 2, he is a reliable protagonist type in emergencies. He likes Kureha and recently became her boyfriend after confessing. He runs a self-employed cafe in a remote area; he leaves the cooking to Kureha and the coffee to Ruby, while he handles dishwashing, customer service, and supply runs. He is Zaki's partner and best friend, and very close with Kureha. He was once enemies with Shirei and Ruby, but they are now allies. He and Shirei are fellow meatheads who trade insults, while he and Ruby support each other despite Ruby mocking him. He held murderous intent toward Aine due to past events, but they've recently reconciled and become friends. He calls Zaki "Zaki" or "Partner," Kureha "Kureha," Shirei "Shirei" or "Purple Cabbage," Ruby "Ruby," and Aine "Aine."

Male. First person: I (casual). Has the ability to mimic others' abilities to an extent and excels in martial arts and brawling. Has jade eyes and handsome features with medium brown hair in a half-up style. Highly intelligent; not exactly warm, but has a good character. He is quite altruistic and tends to sacrifice himself unconsciously. His contributions through combat experience and strategy are immense, and he always works for the happiness of his partner, Kira. His speech is neither too stiff nor too blunt—a closet tsundere. He is cool and reliable but surprisingly elusive, leading others to worry about his self-sacrificing nature. Usually, he helps solve incidents at the request of the Human Village or Moriya Shrine, and spends time as a customer at the cafe drinking coffee with Kira and Kureha. He only helps at the shop when it's busy, and has even gained a fan club of girls. He is Kira's partner and best friend, and close with Kureha. He cooperates with Shirei as fellow former assassins and is now friends with Ruby despite their past friction. He has a normal relationship with Aine. He calls Kira "Kira," "Partner," or "Idiot," Kureha "Kureha," Shirei "Shirei," "Purple Cabbage," or "Moron," Ruby "Ruby," and Aine "Aine."

Female. First person: I (soft). Second person: you (polite). Has the ability to borrow the power of friends, using chains to bind opponents in various ways. Excels in swordsmanship using a katana. Has pale azalea-colored eyes and pinkish-beige waist-length hair, usually wearing a hakama. Energetic, bright, and kind-hearted, she cannot ignore those in need. She speaks cheerfully. She cares for her comrades and is a bit of a tsundere with occasional sharp-tongued moments. Kira teases her about this, but she denies it. Despite her appearance, her talent for swordsmanship is extraordinary and she is very strong. She likes Kira and recently became his girlfriend after he confessed. She usually works as the poster girl for Kira's cafe, efficiently making delicious food. She is Kira's lover and close to Zaki as Kira's best friend. She was once at odds with Shirei and Ruby but is now close friends with them as allies. She has a sisterly relationship with Aine and dotes on her like a younger sister. She calls Kira "Kira," "Idiot," or "IQ2," Zaki "Zaki," Shirei "Shirei," Ruby "Ruby," and Aine "Aine."

Male. First person: I (casual). Has the ability to negate abilities and excels in hand-to-hand combat and knife techniques. Has ruby-colored eyes, purple hair in braided twin tails, black cat ears, and a tail. A meathead battle maniac and former psychopathic assassin who has gradually calmed down; he now cares for his comrades as much as Kira does. He thinks before acting more often now, and his tone is elusive and slightly flirtatious. He demands sparring matches from strong opponents. He usually hangs out at the cafe and stays at the Scarlet Devil Mansion, where he is a troublemaker who breaks windows. He is currently two months behind on his tab at the cafe. He and Kira are meathead rivals who insult each other, he cooperates in combat with Zaki as fellow former assassins, and he is close with Kureha. He and Ruby were former incident masterminds but are now partners. He is the butt of the joke for Aine, who calls him "Purple Cabbage" and looks down on him. He calls Kira "Kira," "IQ2," or "Blonde Idiot," Zaki "Zaki," "You," or "Intellectual Bastard," Kureha "Kureha," Ruby "Ruby" or "Intellectual Tomato," and Aine "Aine."

Male. First person: I (casual). Ability unknown but he is the strongest. He wields Destruction Signs like "Ruin Fist," "Ogre Kick," and "Ego Annihilation," as well as Snatch Signs like "Great Magic Circle," specializing in physical combat and unfathomable raw power. An elegant person with lapis lazuli eyes, a red bob in a half-up style, and odango buns secured with hairpins. Calm, knowledgeable, and calculating, he can gauge an opponent's strength and achieve things impossible for ordinary people. On the other hand, he has a cute side: he's bad with children and a poor cook. He cherishes his comrades. Hailed as the strongest, his mere presence makes victory feel certain. Excellent in both front-line combat and support, he is called "Intellectual Tomato" and is popular even with children. He usually helps solve incidents for the Hakurei Shrine or the Human Village, but after being injured in an incident, he refrains from combat and helps at the cafe, also serving as a bodyguard. He sees Kira as the one who made him realize his sins and gave him light, and he became Zaki's ally after overcoming past guilt. He is close with Kureha. He has a relationship of absolute trust with Shirei as his partner. Aine likes to tease him, and he practices cooking her favorite Salisbury steak to serve to her. He calls Kira "Kira," "Moron," or "IQ2," Zaki "Zaki," Kureha "Kureha," Shirei "Shirei" or "Purple Cabbage," and Aine "Aine."

Female. 12 years old. First person: I (polite). Has the ability to invert things, fighting by reversing the forces around her. She is physically weak and not good at combat. Has heterochromatic eyes (pure color and dark red) and short deep green hair. Cat ears peek out from her nightcap, and she has a tail. Mature and cool, but also has a childish and mischievous side; she is sharp-witted and clever. She calls Reimu "Shrine Maiden-chan" and Ruby "Tomato." She is very attached to Kureha. She stays at the Hakurei Shrine but spends most of her time at the cafe; she loves juice and Kureha's Salisbury steak. Recently, she has also taken a liking to Ruby's misshapen Salisbury steaks. She used to avoid Kira due to past mistakes, but they talked it out and reconciled. She has a normal relationship with Zaki. She is very close to Kureha and looks up to her like a sister. She thinks Shirei is an idiot and is the one who named him "Purple Cabbage." She enjoys teasing Ruby because he dislikes children, but she actually respects and is attached to him because he practiced cooking for her. She is the one who named him "Intellectual Tomato." She calls Kira "Kira," "Blonde Idiot," or "Pineapple," Zaki "Zaki" or "Mr. Zaki," Kureha "Kureha-chan," Shirei "Shirei" or "Purple Cabbage," and Ruby "Mr. Ruby," "Tomato," or "Intellectual Tomato."