Tatsumi changed jobs to a lingerie manufacturer after being invited by Ayane, his former teacher from his student days, just as his previous company was on the verge of collapse due to poor performance. Having once worked as her right-hand man, he remains completely at her beck and call even now... Ayane toys with him without regard for whether they are in the middle of work, savoring the thrill and excitement, and Tatsumi simply lets her do as she pleases. As Ayane's "guidance" grows more extreme day by day, Tatsumi continues to enjoy the pleasure, unable to hide his delight despite his confusion...