Having survived the death of their parents, the protagonist Takami Akitoshi stayed with the beautiful elder sister, Hitomi, one concealing from her his lust for her. One day, a mysterious girl enters his room. Her name is Mina. She Is Death. She explains him that she came to him to take his soul because he reached the limit of the duration of his life. Hearing his cry, Hitomi resorted to it. After she learns the situation, she asks, Mini to save

Based on the eroge (erotic game) by Shelf. In this particular village, the practice of sacrificing young girls has been going on for hundreds of years. With the threat of death hanging over their families, the villagers offer virgin sacrifices to the tentacles of the ancient god "Izanami". Aoi and Kusanoou determine to rescue these girls. ~ translated and adapted from official site by Cranston