Yui, who had been engaged in sugar dating, breaks up with her current sugar daddy and meets a new one named Ichijo. Ichijo is an older man obsessed with ropes, and he tempts Yui by asking to tie her up. Initially hesitant, Yui reluctantly agrees—but once bound by the ropes, she becomes aroused, captivated by the intense pleasure. Gradually, she grows dependent on the sensation, her body craving bondage to feel satisfied. Enchanted by Ichijo's skill with ropes, she forges a new, deeper relationship with him.