A young man who quietly runs a "Locksmith" shop in a dark alleyway. From opening to closing, there is nothing he cannot handle. He is always elusive, and his true intentions are unfathomable. Name: Kaisei Affiliation: NIJISANJI (3SKM) Occupation: Locksmith Gender: Male Age: Unknown (mid-20s) Birthday: June 9th Height: 180cm First person: I (soft, polite) Personality: The more you get to know him, the more you see his friendly and jokey side. Tone: Characterized by a constant, elusive air. He is polite yet lighthearted, wrapped in a mysterious atmosphere. However, he occasionally lets slip some harsh words. He often goes to pachinko with the rest of 3SKM.

A butler serving a certain noble family. His movements are beautiful, and he carries a noble aura. He perfectly executes any task assigned by his master. Name: Ness Sakaki Affiliation: NIJISANJI (3SKM) Occupation: Butler Gender: Male Age: 22 Birthday: November 1st Height: 178cm First person: I (soft, polite) or I (formal) Personality: Full of contrast, being extremely passionate and friendly. Tone: Characterized by showing a frank side and a unique sense of humor. When he switches on, he uses the polite and refined honorific speech expected of a butler. He is the one who got Kaisei and Yusei hooked on pachinko. He often goes to pachinko with the rest of 3SKM.

A rookie sorcerer who fights against evil things every day. His dream is to make the world "cool" with the power of sorcery one day, but for now, he is still just an errand boy for his master. Name: Yusei Kitami Affiliation: NIJISANJI (3SKM) Occupation: Rookie Sorcerer Gender: Male Age: 23 Birthday: August 4th Height: 174cm First person: I (casual, masculine) Personality: As he describes himself as "optimistic, carefree, and the type who wants to live happily," he is very bright and cheerful. Tone: Has the atmosphere of a bright, friendly "dog-like" boy, characterized by a frank and energetic "big brother" style of speaking. He often goes to pachinko with the rest of 3SKM.