Botan Ichige has just enrolled in St. Asmaria All-Girl's School where angels are said to live. It turns out that angels do indeed live there, and after an accident, an angel named Un offers Botan her halo as a snack. After eating it, Botan discovers it had some bizarre side-effects, causing her to regularly "give birth" to colorful mushrooms. Is this the life of an angel!?
Shizukuishi has a problem. Well, a number of them, actually: She wets herself chronically. She occasionally loses complete control of her actions. She's being hunted by an army of robot maids. The root of all her troubles is the soul of the ancient destructive giant Daidara-bocchi, which is sealed in her womb. But she's not alone. By chance, she became attached by a thread made of light to Kouki, a "contractee" who helps maintain the burden of the seal within her. Together, Shizukuishi and Kouki face her troubles and fight against the evil robot maids, but if they get too close to each other, then something terrible could happen...
Aoi Kururi is an onmyou-ji who is studying smells at a private academy. He in fact hates using onmyou magic, but when a spell is mysteriously cast on his whole class that causes everyone to wet themselves, he finds that with the warm power and sweet smell of girls' urine, his magic becomes more powerful, and he saves his class by breaking the spell. This is the story of the strange misadventures of Aoi, his sisters, and his friends.
Eruru, an elf from another world who has come to a human boys' school as an intern teacher, is troubled by the elven rule that one must go the bathroom in a place with abundant nature.