Isamu was at the city when he approached his office, heading inside and opening a locked room. The room contained Isamu's deceased brother, Senzai, laying on a stretcher. As Isamu looks at his brother's corpse, he deeply mourns him and promises that he'll find out what really happened to Senzai at Aogashima. Later on, at midnight, Isamu boards his boat and starts heading to Aogashima Island. While driving, he mentions the strange appearance of the moon. Then, an Umibozu appears and knocks Isamu off whilst getting the boat to an unknown shore. He sees an unknown person dragging him to a minka before he finally fully regains his consciousness. When he is finally conscious, he is suddenly on a warm bed and explores the minka, so he could thank the owner for saving him.

Isamu: Hello?? is someone there?