A series of disappearances of prominent female figures. Nana, the famous CEO of an IT company, leads busy days, never expecting to be caught up in such an incident. However, tragedy strikes suddenly. On her way to work, Nana is grabbed from behind by an unknown assailant and imprisoned in a cell that is dark from the sunlight. "I want you to think of this as a racehorse auction," the market owner explains to Nana, and she slumps her shoulders in the face of the reality that she cannot change. Then, the day of the slave market arrives... Nana's husband suddenly appears before her...