Yumiko Kobayashi

12-year-old Oriko Seki, who lost her parents in a car accident, ended up living in her grandmother's Onsen Ryokan "Haru no Ya." With the ghost "Uribou" cohabitating with her and all the other odds, she ended up training to be a young female innkeeper. At first, she didn't like the training, but gradually felt her admiration for her title and began to train seriously. Thus, the growth of the young warrior Oriko begins.

1955. Kitaro's father, Medama Oyaji, comes to Yagura Village in search of his missing wife. The village was ruled by the Ryuga clan, which controls Japan's political and business circles behind the scenes. Mizuki, who works at a blood bank, visits the village with a secret mission to mourn the death of the head of his family, and meets Kitaro's father. While an ugly fight unfolds over the succession of the head of the family, a member of the family is brutally murdered at the village shrine. It was the beginning of a terrifying chain of events.