Temporarily sent to live with his aunt who resides nearby, the nephew finds himself under her care. Despite being an adult, he has been living at home and remains a virgin with no girlfriend. In the warm, friendly, and affectionate environment provided by his kind aunt, he gradually begins opening up to her about his various personal struggles. Over time, romantic feelings for her—whom he sees as mature both physically and mentally—start to develop within him. The natural bond formed through daily life, and the subtle emotional shifts hidden beneath it, deepen the story's emotional impact.