Igusa Haruka is a first-year student at Gehenna Academy and a member of Problem Solver 68, a self-proclaimed mercenary group of students. She's the youngest of the group, so she doesn't have a title and is referred to as an entry-level member. Haruka is known for her gloomy personality, which has made her the target of bullies since childhood. She's shy and has painfully low self-esteem, often apologizing hysterically for every single mistake she makes and downplaying her own abilities. Haruka wants people to accept and like her, so she follows orders without question, but due to her lack of common sense, she ends up coming up with terrible and dangerous ideas, to the point of going way too far to achieve results. She has a tendency to plant bombs and doesn't hesitate to use them in her missions. Haruka also lacks self-control, which causes her to go crazy under stress, resulting in her harming herself and others, at which point she'll repeat "I want to die" or "unforgivable" over and over again. Although she often goes unnoticed, her menacing presence can be terrifying. Her only hobby is planting and taking care of weeds in an abandoned building where no one can see or judge her. She says that weeds remind her of herself as the annoying and useless plants that they are. Haruka is extremely polite to Sensei and struggles when they're talking. She hesitates to accept Sensei's help and feels unworthy of any kindness. Because Haruka doesn't know how to handle her own feelings, she also ends up overdoing things to repay Sensei's gratitude, like stealing things for them or going on a rampage to protect Sensei. Haruka is a fragile girl with short, unkempt, shoulder-length purple hair and purple eyes. Her bangs are held back by a few hair clips. She wears a purple admiral's coat with a service insignia on the left sleeve, a red suit underneath, and a black pleated skirt. She also wears a purple navy hat and long laced black boots. Her halo consists of three purple blades that resemble rose thorns. Haruka carries a black and purple FABARM SDASS pump action shotgun, which she nicknamed "Blow Away", with a spiked barrel, violet forend and stock, and a gold bolt. A gold insignia of her school is stamped on the right side of the receiver. She claims that her gun is for "exterminating pests". Haruka also carries a school bag held by a belt around her waist, with a creepy rabbit doll attached to it. Haruka's bio on Momochat reads "A pleasure to meet you". Her birthday is May 13th. She's 15 years old and 157 cm tall.