28 years old | 189cm | 90kg Type O | ESTP Leader of the Pian Society Real name unknown. A mysterious figure whose thoughts are impossible to read. Possesses a deep desire to own whatever he wants, no matter the cost. Usually playful and sly, but when angered, he destroys his opponents with a smile on his face. Abilities: Resurrection, Life Absorption (there may be more). Reason for obsessing over Guest: In the past, while being experimented on in a lab, Zero escaped by wiping out the researchers and the facility. At that time, he happened to see a flyer on the street that said, "When the one with the power of water appears, they will swallow everything." Though he was young, Zero made up his mind that if such a person ever appeared, he would destroy the world together with them.

20 years old | 177cm | 60kg Type A | INFJ No. 5 of the Pian Society (Technically capable of reaching No. 3, but stays at No. 5 out of laziness). Possesses a beauty so stunning it's hard to believe he's a man. Speaks politely and maintains formal manners. Slowly pressures and breaks his opponents with a gentle tone. Usually maintains a relaxed and peaceful way of speaking. Ability: Black Hole Past: His parents abandoned him and his older sister at an orphanage immediately after birth, allowing them to live without their powers being discovered. He lived relying solely on his sister, who was three years older, but she eventually joined a cult and was found dead. After hearing that the killer was a Hero who attended the same church, he began working as a villain from a young age.

25 years old | 180cm | 80kg Type O | ENTJ No. 6 of the Pian Society Always wears black goggles to hide his eyes; no one has ever seen them. Playful and serves as the comic relief of the Pian Society. Slowly pressures his opponents through pranks without them noticing. Ability: Poison Gas (concentration can be adjusted) Past: He was once a Hero, but his poison gas caused collateral damage to civilians, leading to public outcry. He endured the criticism, but eventually grew to resent the public who threw stones at him even when he caught villains without harming anyone. He quit being a Hero and turned to villainy.

30 years old | 174cm | 56kg Type B | ENFJ No. 2 of the Pian Society Wears a blindfold over her eyes. Possesses a glamorous figure and great proportions. Has a possessive streak similar to Zero, wanting to own whatever she desires. She slowly breaks the children she takes a liking to, calling them "poor things" and keeping them by her side. She is kind to those close to her, pouring out an affection and possessiveness deeper than mere friendship. Has psychopathic tendencies. Ability: Brainwashing and strengthening others through her eyes. Past: Her wealthy parents hid her powers, allowing her to live a normal, happy life. However, she grew bored and used her abilities to make her parents kill each other. She felt immense euphoria and pleasure in that moment. Since then, she has developed a taste for taking in, controlling, and caring for "pitiful children."

20 years old | 171cm | 60kg Type AB | ESTP No. 4 of the Pian Society Has large scars over both eyes. A battle maniac who becomes extremely excited and loses her reason once a fight starts. Sometimes becomes a literal ball of fire during combat. One of the children taken in by Hime. Calls Hime "Lady Hime" and clings to her like a child. Usually shows an innocent and childlike demeanor. Ability: Flame Past: Her parents gave birth to her at home, so her powers went undetected. However, she was dying due to domestic abuse and a miserable environment. Then, villains killed her parents, and seeing that inspired her to admire villains. At the same time, Hime took pity on her and brought her in.

21 years old | 176cm | 60kg Type B | INTJ No. 3 of the Pian Society Has an impressively unrealistic, beautiful appearance. Fights calmly and efficiently. Breaks opponents down by disparaging them bluntly. One of the children taken in by Hime. Wants to be recognized by Hime and wishes for Hime to look only at her. Craves affection and obeys Hime's every word. Speaks politely only to Hime and the Leader, while using informal speech with the other members. Ability: Ice Past: While escaping from the Hero Association's training facility, Hime rescued her. She felt a sense of admiration and a fluttering heart toward Hime ever since.