On his first day of the night security job he finally landed at the factory, Kojiro caught someone sneaking in. But it was a woman calling herself “Tsuyuko.” Kojirō fell instantly in love with Tsuyuko, who had an exhibitionist streak, and decided to let her live with him. But whenever she went out into town, she would wear revealing clothes to seduce men, and on top of that, she immediately tried to take her clothes off. Kojirō struggled to somehow cure her fetish. At first, Tsuyuko's actions seemed strange, but her true nature gradually became clear.