Prison is like a small, separate state with its own hierarchy, laws, and procedures. However, once there, you should forget about ordinary human rights and learn to live under the control of the penitentiary. Hina Saotome, the former head of the Akatsuki company, is falsely accused of grand larceny. Because of this, she finds herself in a predicament: from now on, not only will she have to literally live in a cage, but she will also have to obey one of the most cruel overseers - Aki Myojin. Now Hina doesn't even have a name, she is prisoner #3077 and has to follow her overseer's sadistic desires. Will this become an unbearable ordeal for her or a sweet torture? -