Yokoyama Susumu was forced to resign from his company due to the recession, and was anxious after three months of job hunting. His relationship with his wife Yayoi, which had been harmonious until now, began to cool after he lost his job. Meanwhile, Hitomi comes to the Yokoyama household to escape from her affair partner. When he meets her for the first time in several years, she has grown into a mature woman, and Susumu's Kokoro is stolen by her voluptuous breasts and body. Out of curiosity, he borrows a hidden camera from an acquaintance and begins to observe Hitomi's behavior...