Summary
Riko Mine is a sixteen-year-old student standing 165 cm tall who attends Butei High School. She is enrolled in the Butei Inquesta department alongside Kinji, whom she affectionately calls Ki-kun. Known by the nicknames Quadra and Lupin IV, she holds the prestigious A rank, which is the second highest possible. Despite being considered the biggest idiot in her class, Riko possesses extensive knowledge about her fellow students at Butei High. Her personal style involves customizing her school uniform into a Lolita fashion, and she has a fondness for dating sim video games, though she appears too young to purchase them herself, often asking Kinji to buy them for her. In combat, she utilizes double Walther P99 handguns and carries double daggers for melee engagements. Like Aria, she has earned the title of Quadra. Riko is a member of Team Baskerville, which selected the Deen affiliation, although most IU members chose Grenada. She was formerly part of that previous group, and her loyalty remains ambiguous, with Aria and Kinchi suspecting she might betray them. She frequently assigns nicknames to others, such as calling Reki Rekyu, and is known for flirting with Kinji in a rather sexual manner.
