[Icharab anal torture work for women] A lovey-dovey couple, Waka and Riku. One day, Waka hears from her girlfriend's friend that ``men who feel their anus are cute'' and becomes interested in men's anuses. Since she is not interested in other men, she asks Riku to let him develop her anus. Riku originally said that there was no such thing as normal or anal, but he gradually succeeded in developing it, and in the end he only had buttocks.