Kamiyama Shiki

She was abandoned by her parents in front of the Kamiyama shrine in Torishirojima. After being adopted by the Kamiyama priest, she was raised as a shrine maiden for the shrine by him. To repay what the islanders did for her, she tried to save them from the tsunami after hearing the Naruse maiden's prediction. However, it didn't go as planned, and she eventually ended up running away, ending up in the Tachibana of the Lost. She was trapped there for 150 years, eventually losing all her memories aside from her given name. These events eventually led to the shrine being renamed to the Naruse shrine, where it stands in the present.