Professor Hashigami was murdered, and the cause of his death is unknown. However, there is a dying message left by Hashigami at the crime scene.

Aria lost her parents early in life, and lived alone with her big brother Takaharu. The days together with her dear big brother were very satisfying for her. However, that happiness did not last long. The relationship between the two young adults gradually distorted into a strange one...

Yuta and his friends head to Anmeiji. Tracing the ominous sounds echoing within the grounds, they find an albino boy standing there with a wooden box in hand, grinning from ear to ear...

Ryoka seems so different than usual that she feels like a different person. Yuta is bewildered by her attitude. What is going on?