Kazuya Niimi is a university student known for having fingers so stiff they hardly seem fit for a pianist. One day, by sheer chance, he finds himself transported to another world— a world where men are not treated as people, and women reign supreme. However, Kazuya soon notices a strange change in his body: his fingers now possess a mysterious power— when he touches others, their bodies react involuntarily. In a society ruled by women, Kazuya’s enchanted fingers begin to stir up unexpected emotions, desires, and chaos... His fingertips will moisten this unreasonable world.