Saki Fowler is a 17 year old academy student who studies proudly at Prowess Academy. She is one of the very few students who is on top of her class and is a target to bullies who torment her on a daily basis. One day, right after classes end, Saki walks home after a hard day of training. on her way home from the academy, Saki hears three strange laughters and starts to panic. Shaking them off her trail, she soon comes across an alleyway and is in a shock for her life...