Imouto ni Seifukusareru Ore

Shizuku, a college student five years younger than her brother, appears to be a sweet girl with a loli face, kitten eyes, fluffy twin tails, and large breasts. However, she is a devilish woman who seduces men without any respect for her older brother, calling him "Onii-chan" but treating him like a toy.

One day, the brother wakes up to find himself restrained while sleeping, with Shizuku straddling him, her expression melted with desire. She declares that he is now her thing, and despite her cute words, her actions are far from innocent. As she begins to unbutton her blouse, the brother's thoughts race, trapped in a situation he never expected.