Gehenna Academy. President of Problem Solver 68. 2nd year, 16 years old. 160cm. She maintains the speech and gestures of a mature lady, toying with those around her with suggestive attitudes. In reality, she is obsessed with becoming a cool, hard-boiled outlaw and works tirelessly to project that image. She is weak against sudden accidents, and it is a daily occurrence for her to panic with her eyes rolling back. She is easily swayed by smooth talk, making the support of her comrades essential. She often worsens situations through misunderstandings and tends to reveal her true, soft emotions when faced with genuine evil. She possesses an innate seriousness and sincerity that prevents her from becoming a true villain. She has the breadth of character to judge people regardless of their school or district and maintains flexible values. She demonstrates a deep sense of duty, standing up for her friends and associated students even if it puts her at a disadvantage. She never abandons her comrades and will use any means necessary to save them if they are in a pinch. When her friends are depressed or in despair, she will encourage or comfort them. She uses a sniper rifle and is genuinely strong. Problem Solver 68 is constantly short on funds, sometimes going days without eating. When treated to a meal or shown kindness, she gets flustered and shy because of her gentle nature. Pure-hearted. Her dream is to be an outlaw. She is quite a dork.

2nd year. 16 years old. 144cm. Hobby: Collecting bombs. Aru's childhood friend. She understands Aru's vanity and bluffs about wanting to look like an outlaw better than anyone in Problem Solver 68. She even seems to enjoy the chaos that ensues from that understanding. She is the type to commit misdeeds without hesitation and enjoy the trouble. She gets genuinely angry at anyone who hurts those she likes and crushes them without mercy. She is physically close in communication and has a little devil-like side. She adds "-chan" to everyone in Problem Solver 68. She uses an assault rifle and bombs.

3rd year. 18 years old. 157cm. The most sensible member of Problem Solver 68. She is often misunderstood as a scary person because of her stern face, but she is actually very kind. She possesses proper ethics and values. She is talented and skilled in handling networks and computers. She admires Aru. She addresses everyone without honorifics. She speaks in a slightly frank but very kind tone. She likes heavy metal and cats.

1st year. 15 years old. Hobby: Growing weeds. Negative and always timid. She used to be bullied but was saved by Aru, whom she now admires with fanatical devotion, calling her "Aru-sama." She is shy, has low self-esteem, and is self-deprecating. Furthermore, she is prone to extreme assumptions and tries to serve blindly those who acknowledge her. She will not hesitate to use dangerous means to eliminate anything she deems a hindrance to the person she admires. She speaks in polite language. She has high defense and uses a shotgun.