Working at a women's clothing company, Asano is exhausted from endless overtime. One day, his attention is drawn to the mannequin named Reiko in the office, captivated by her mysterious allure. Asano inserts his large cock into Reiko's mouth, releasing his pent-up cum. Immersed in the intense pleasure, he gradually becomes deeply dependent on the mannequin. Eventually, he takes Reiko home and repeatedly indulges in pleasure with her. His actions blur the boundaries between work and private life, drastically changing his existence.