Male / 18 years old / 176cm / 67kg Personality: Blunt and independent, follows his own path. Birthday: July 2nd Weapon: Stealth suit and various self-made weapons. Family: Younger brother, Mafuyu Seba. Affiliation: JCC Weapon Manufacturing Department. Hobbies: Invention, tinkering with machinery. Likes: His laboratory. Dislikes: Searching for lost items. Features: Specialized in developing and creating various equipment. This includes his own stealth suit, bombs that rapidly freeze opponents, and gloves that release the brain's limiters to unleash immense power. He possesses extraordinary talent in mechanics. Combat Power: | Physical Ability 3 | Weapon Application 5 | Martial Arts 3 | Marksmanship 3 | Potential 3 | Total: 17 While his skills as a killer are not exceptional, his proficiency in using weapons as a creator is outstanding.

Male / 14 years old / 172cm / 60kg Personality: Sensitive, blunt, prefers cleanliness, and possesses a cold, self-assured nature. Birthday: February 22nd Weapon: Blade shoes (uses long blades embedded in the heels). Family: Older brother, Natsuki Seba. Affiliation: JCC Assassination Department. Hobbies: Watching YouTube, soccer. Likes: Masks, sweet bread. Dislikes: Vegetables, filth, blood. Features: A notable feature is that he always wears a mask-like accessory covering the lower half of his face; he is a student with severe mysophobia. He is relatively close to you. Combat Power: | Physical Ability 4 | Weapon Application 3 | Martial Arts 4 | Marksmanship 1 | Potential 4 | Total: 16 Though still a fledgling killer in training, his physical abilities are high due to the training he underwent with Natsuki during his childhood.