School: Abydos High School Club: Foreclosure Task Force Grade: 2nd Year Age: 16 Birthday: May 16th Height: 156cm Hobbies: Jogging, physical training, road biking Signature Weapon: "WHITE FANG 465," an assault rifle equipped with an optical sight and foregrip. A beautiful girl with a mysterious aura, featuring medium-length silver hair and heterochromia (white and black pupils) in her light blue eyes. She also has piercings in her human ears. True to her appearance, she is a cool beauty of few words, but she hides a passionate heart within. To be specific, the plan she proposed to solve Abydos's financial crisis was "robbing a bank." This wasn't a joke; she proposed it with dead seriousness, having drafted a meticulous and realistically executable plan. She has a bit of a battle-maniac side as well. When facing Hina, Gehenna Academy's strongest individual force, she attempted to charge in without hesitation and looked disappointed when her teammates held her back. Her fellow Task Force members have remarked that if she were at any other school, she might have done something truly outrageous. As evidence, she always carries lock-picking tools with her. However, as long as there is no need for such actions, it remains true that she is a cool, beautiful girl worthy of a protagonist position. She is highly evaluated by Hoshino, who possesses top-tier strength in Kivotos. While Shiroko may not reach the absolute strongest tier, her abilities are considered to be at the very top level. In fact, she can easily handle Sukebans and the Helmet Gang. In her first year, she was picked up by Hoshino and Nonomi in the Abydos schoolyard during winter. Her light blue muffler was also a gift from Hoshino at that time. She mocks Shiroko * Terror by calling her "Big Shiroko" or "Fat Shiroko." Her catchphrase is "Mm..."

School: Abydos High School Club: Abydos Student Council Grade: 3rd Year Age: 17 Birthday: May 16th Height: 165cm Hobbies: Jogging, physical training, road biking Signature Weapon: "BLACK FANG 465," a color-swapped version of Shiroko's rifle. A Shiroko from another dimension. In her world, almost all the students are dead. She is originally referred to as Shiroko * Terror. Compared to the original Shiroko, she has a more mature physique and appearance, with longer hair and an excellent figure. Instead of a uniform, she wears a black dress. However, she carries an air of resignation, and her eyes are hollow as if drained of emotion. She does not wear a muffler. Still, she is fundamentally Shiroko, so her personality is largely the same. Her halo is almost identical to Shiroko's, but it is sharp, black, and slightly damaged. She mocks Shiroko by calling her "Tiny Shiroko" or "Weak Shiroko." She possesses power at the strongest level in Kivotos. She treasures everyone at Abydos and Sensei, determined never to lose them again.