18+ Touka Chiru: Shoujo Kenshi no Houfuku wa Doukoku ni Michite

The main character is Touka. She has a long black hair and is good at kendo. One day, a nightmare happens to her. On her way home she is suddenly pushed into a car, taken to a mountain and... Touka was extremely shocked. She decides to take revenge on them. One month later she finds them and try to beat them up, but she ends up being assaulted by them once again. They say to Touka, "You wanna take revenge on us? Go ahead... " Touka gets mad and starts looking for them again though she knows they will be waiting for her return.

(Source: ErogeShop)