Overtime

Cheon Suji is a young professional, struggling to survive each exhausting day. Endless overtime drains her energy, and even her weekends are stolen by unwanted company outings.
One day, her brother’s old friend, Seo Jaehyun, suddenly reappears in her life. Ten years older and effortlessly charming, Jaehyun has always been affectionate toward Suji—ever since she was a child.
Late one evening, after drinking too much, Suji makes a reckless mistake. On impulse, she kisses the sleeping Jaehyun… and gets caught. Expecting him to recoil in disgust—or even accuse her of crossing a line—she braces herself.
But his reaction is nothing like she imagined. “Who kisses without even opening their mouth?” he teases. Flustered, Suji asks, “Then… how are you supposed to do it?” His reply is simple: “Open your mouth.”
From that moment on, Suji is swept into a whirlwind of desire. The man she once thought of as her safe, gentle first love of 25 years reveals a side she never expected: a shameless pervert. Yet instead of being repulsed, Suji discovers new desires of her own.
Though she tells herself she should push him away, Jaehyun’s relentless and seductive pursuit only pulls her in deeper…