Rei, the superior at work, secretly caught the attention of her junior colleague, Yoshida, who harbored feelings for her. Whenever aroused, he unconsciously played with his own nipples. When Rei noticed this habit, her curiosity was piqued. Using Yoshida's work mistakes as an excuse, she began punishing him by teasing his nipples. Each time, Yoshida would climax repeatedly. Following her commands, he secretly continued the nipple play. Gradually, his body grew accustomed to the pleasure, and he began to crave the ecstasy of having his nipples tormented.