The year 203X—it appeared suddenly. Something that looked as if it had jumped out of a "Yokai painting" manifested throughout Japan, becoming a being known as a "Kengen-sama" (Manifestation)... Sou Nonoya, a student at an art university in Aichi Prefecture, is a college student who loves Kengen-sama. Along with his friend Hikaru Ami, he studies late every day inside the university. Before Sou, who is deep in his research, a Kengen-sama that looks just like a mysterious "Omanjuu" (steamed bun) appears... An academic-spiritual story drawn by a promising new talent, the curtain finally rises!