Yui was transferred to a rural branch school, striving in her daily lessons with a dream of teaching students amidst nature. However, her class included mischievous troublemakers like Shota, who paid more attention to Yui's big ass than their studies. Skirt flipping and groping her buttocks became routine pranks, and gradually Yui found her mind and body shaken by these acts. Her vulnerable state only pushed the situation toward increasingly intense developments...