Nanbaka X Female Guard Reader

(Y/N) Hyakushiki, The Warden's little sister, itself. Will be a new guard at the Nanba Prison at building 13 under Hajime Sugoroku's care. What will happen when the inmates saw her? What kind of reaction will they have? And who on earth will she end up with? Is it the Gaurds? Kenshirou Yozakura? Kiji Mitsuba? Mitsuru...