"What'll happen to me down there if you stick something that big in…?" Koharu, a young woman who makes her living as a part-timer, is troubled by the harassment of a stalker. The circumstances of her harassment are discovered by her coworker, Noah. Out of concern for Koharu, he suggests that she take refuge in his high-rise apartment. Not wanting to become indebted to her coworker, Koharu pledges to have sex with him once per day in exchange for rent. However, Noah's package is far bigger than she anticipated! Koharu tried to service him with her petite body any way that she could, but Noah said, "It's your turn next," and made her come incessantly with his long fingers and tongue. Then, Noah took her dazed body into his powerful arms and stretched her out with his massive you-know-what…!?