Mitozu is a quaint mountain town with a population of 6000. As the clock strikes six in the evening, deep bell chimes reverberate through the streets. Locals understand that venturing outdoors after the bells toll is strictly forbidden till daybreak. However, one fateful day, an uninformed outsider who had spent a decade in Tokyo breaks this rule. As a result, an ominous entity known as The Dark One finally finds a target to strike upon.