Blue Drop

When Mari Wakatake arrives at the gate of the exclusive Kaihou Academy, she is a girl without a past. Five years earlier, something happened to her. Something that took the lives of her parents and every other human on Kamioki Island, then wiped her mind clean of even memories. but if Mari's past is an unknown nightmare, her future may soon become even more terrifying. Because while she was the sole human survivor, there is something else that lived through that same night, and her path is about to cross Mari's again. Something in a female skin has invaded Kaihou Academy, and Mari is its target. (Sentai Filmworks)