Friends with Benefits was Supposed to be Enough

Synopsis

Usami Rino and Hirai Rintaro's relationship began as "friends with benefits" from a matching app. They lived nearby and shared great chemistry, especially in bed. Rintaro, an entrepreneur from a different world, was supposed to be a casual fling, but Rino found herself falling for him. Deciding to end it before becoming "too much," she visits him one last time. "It's over today." But his attitude shifts the moment he sees her phone. "Not looking for a boyfriend? Then why react like this?" His hidden possessiveness surfaces, cornering her with words and persistent caresses. As she tries to leave, his obsession only grows. "I won't let you go." Their casual bond is replaced by a maddening desire for ownership, turning their night into a fierce, emotional dialogue of bodies.