Japan in the near future
Every year, the crimes get more vicious.
The idea of safe Japan becomes a myth, and the police enforcement is no longer working.
Then, "Special fighting force Snake" made an appearance.
The group possesses the awesome force and power over the hard criminals. The heroine Kotone is one of the elite members in the group, with the title of S class.
Due to her great looks, the outstanding athletic ability and the mental strength, she was chosen to tackle another big project. However, perhaps she underestimated her enemy, and what happened next was...

[From DLSite English]