In this fifth episode, Yuki's tutoring efforts with Ryo, Ri, and Koji veer into uncharted territory as the dynamic between mentor and students shifts dramatically. The young men, once absorbed in campus life, now assert control and introduce objects to probe her limits, leaving her restrained and increasingly vulnerable. Despite her visible resistance and rising tension, Yuki's body begins to yield to unfamiliar sensations, drawing her into a reluctant awakening of hidden responses.