Ryō Ikehata

I first bought this novel thinking it would be enjoyable, but I never expected it to blow my mind. A girl with no memory is forced to remember her past by transforming into a sword-wielding savior. Enemies know as chiropterans or "mice" threaten innocent people and it's up to Saya to save them with her faithful cello-playing friend Hagi. Among this hectic lifestyle, Saya tries to live a normal life with her adopted, loving family and friends.