One drunken night, Hikaru and Mizuki end up sleeping together. After that, Hikaru keeps approaching her, and before she realizes it, Mizuki's heart begins to waver. As chances to be alone together increase during work breaks, feelings she hadn't acknowledged start to emerge. Emboldened by beer, she discovers a more honest side of herself and realizes their feelings are mutual. They share a kiss in the empty office—what starts as a simple kiss quickly escalates, their bodies naturally intertwining as they fall into a passionate affair.