Having come to Tokyo from the countryside, I was working part-time at a convenience store between university classes. Lately, my shifts had been overlapping with Ririka, an older female coworker, giving us more chances to work together. One day, we found something strange in the disposal box—condoms. After discovering them, Ririka fell silent for a moment, then murmured, "Lately, my husband hasn't been giving it to me." As a shy virgin, her words instantly turned me on, and I seized the moment to make my move. At first, she brushed me off with a laugh, saying, "Don't tease an older woman," but after I kept pushing, she suddenly whispered, "Well then... come here," leading me into the staff toilet. Before any customers arrived, she said, "Let's do it," and we had full unprotected sex right then and there. After that, we started meeting repeatedly during our shifts, beginning a string of secret short-time affairs. Thanks to Ririka, my body is constantly satisfied—there's no time to rest.