Kosuzu Mikan moves to and is assigned to a remote village deep in the mountains, which was introduced as part of a regional revitalization and medical support initiative. While Kosuzu is excited about her new life in the idyllic village, she gradually becomes aware of the village's abnormalities. The village is extremely depopulated and has a surplus of men. There are almost no women, and the arrival of a young nurse causes the entire village to become strangely excited. At first, the residents complain of feeling unwell, but soon they begin to request that Kosuzu take on a sexual role known as a "healing companion"... What is the truth behind the constant sexual support that Kosuzu provides to the villagers, who she calls "healing companions"?