With her husband on a business trip, Maki is always busy with housework and child rearing, and is always on the move by the minute. Today, as she finishes her part-time job right on time, she is invited out for drinks by her colleague, Hayashi, a student... Feeling a thrill for the first time in a long time from his devotion, she accepts his infidelity for a limited time, saying "if it's just for a little while." From that day on, the two of them repeatedly engage in intense intercourse in the short time they have between work and during breaks. Maki's body, which is desired intensely in the limited time she has, is always hot and wet during the workday...