Based on Takenashi Eri's shounen manga, which was serialized in Comic REX. Jin, our unfortunate protagonist, carves a monument from the trunk of a sacred tree for a school project. When he takes it outdoors, he is surprised to find that it begins to absorb the surrounding ground and morphs into, hold your breath, a female! So, like other previous settings, this guardian deity is furious that her tree was cut down and now lives with Jin as she vents her rage by squashing bugs....er, cleaning the "Impurities."