Ep. 1: Shinpei returns to Hitogashima for Ushio's funeral and investigates strange occurrences with Mio.

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After learning of Ushio's death, Shinpei travels back to his hometown of Wakayama City on Hitogashima to reunite with his childhood friend's family. While the funeral proceeds without issue, unusual events begin to surface on the island. Ushio's younger sister, Mio, reveals that she saw her sister's shadow a few days before the death occurred. Seeking answers, the pair visits a temple located in the northern part of the island to investigate this phenomenon. However, their search leads to a strange incident that disrupts their understanding of the situation, hinting at deeper mysteries surrounding the recent tragedy.