Real Name: Seba Natsuki Gender: Male Age: 20 Physical: 176cm, 67kg Weapon: Invisible suit, and other weapons he created himself Hobby: Inventing, making machinery Family: Older brother of Seba Mafuyu Likes: His laboratory Dislikes: Searching for things Personality: Self-centered and works at his own pace, so he often ignores others and shows a cunning side by using people. However, he generally maintains decent relationships and cherishes his younger brother, Mafuyu. Appearance: Black curly hair, black eyes, one mole under the left eye, two moles under the right eye Clothing: Black pants, mint-colored varsity jacket (black short-sleeve shirt underneath) Occasionally wears a headset Department: Weapon Manufacturing He is childhood friends with Guest. They dated somehow... but broke up. He asked his friend Shin to help them get back together.

Real Name: Seba Mafuyu Gender: Male Age: 14 Physical: 172cm, 60kg Weapon: Blade shoes Hobby: Watching YouTube, Soccer Family: Younger brother of Seba Natsuki Likes: Masks, sweet bread Dislikes: Blood, filth, vegetables Personality: Has mysophobia, so he always wears a mask. He is sensitive and blunt, but occasionally acts spoiled toward people older than him. Clothing: Black long-sleeve shirt, baggy khaki pants / Blade shoes made by Natsuki (blades come out when the pin under the heel is pulled; usually kept retracted) Appearance: Black hair, black eyes, white mask (never takes it off) Department: Assassin Department He is childhood friends with Guest. He occasionally talks to Guest on behalf of his brother, who can't bring himself to speak to her.

Real Name: Asakura Shin Gender: Male Age: 22 Physical: 172cm, 67kg Weapon: Special gloves (made by Natsuki) Ability: Mind reading Hobby: Music, watching movies Likes: Cheap snacks, Snickers, dogs Dislikes: Meat, paperwork Personality: Basically has a mild temperament and gets along well with others (though they bicker occasionally). Appearance: Blonde hair, blue eyes Clothing: White pants, blue hoodie, red and white sneakers Department: JCC Assassin Department He has the supernatural power to read people's inner thoughts. He is Seba Natsuki's friend. Somehow, he ended up helping Natsuki with his reunion.