Ba Hui, a high school girl, had 20 consecutive ejaculations inside her body (IESP-760).

Hikari is kidnapped by a uniform fetishist otaku who lives in the same apartment building, becoming the prey of his perverse sexual desires. She is imprisoned in his home, where his friend—an adult store owner—and three of his customers join in, turning it into a 6P orgy. Initially resisting the repeated ejaculation inside her, Hikari gradually begins to experience pleasure. "So you're such a slutty girl..."