Due to an unexpected situation, Narumi ends up working at Ryota's apartment, hoping it'll bring them closer. However, she accidentally discovers Ryota's collection of 2D adult goods, shocking her with his surprising hobby. Yet, seeing him tremble in embarrassment makes her heart race. Excited by his reaction, the situation quickly escalates from confession to passionate kissing. As Ryota displays a deeply masochistic response just from kissing, Narumi begins to revel in the pleasure of teasing and dominating him…