夏樹的監禁生活

Natsuki was speechless in face of Mayumi’s indifferent and sharp question. She had gone through such resistance. Countless calls for help. Countless escapes. She ended up in a dark room, continuously pleasing men. The only way out was the promise that the boss had said.
When Natsuki had earned as much as the hundreds of million dollars that her boss demanded, he will set her free. But deep down in her heart, Natsuki was furious. She decided to gather evidences, find someone powerful and righteous, wipe that evil organization out, and reunite with her brother. However, can she really free herself out of the cycle of constant prostitution and drugs?

[From Steam]