Shun, an impressionable student who grew up in a single-parent household, has begun to think of his biological mother, Maki, as a woman... His mother's soft-looking tongue and lips as she eats ice cream, the lingering scent of her removed panties, and her voluptuous naked body reflected in the frosted glass of the bathroom. His delusions about his mother gradually grow, and before long their modest "everyday life" begins to go awry.
