The time is Taisho. A half-vampire girl, Meiko, has lost her parents and is left alone on her own. She is shunned and hated by the villagers, and is eventually locked up in a dark cell... She is saved by the army commander Shindo Keiji. Whenever she comes into contact with his enveloping kindness, Meiko gradually develops a special feeling for him... However, as her feelings grow stronger, the half-vampire's urge to "seek the blood of the one she loves" becomes uncontrollable...! I'll change everything about you... The Cinderella story of a half-vampire girl and a gentleman soldier begins!