Daon Yoo, a 25-year-old tutor, wants her first time to be with someone well-endowed. She asks her brother’s friend, Woohyun Na, to guide her. As their intimate sessions continue, Woohyun’s feelings for Daon grow significantly. Their pleasurable encounters, filled with deep connections and intense moments, blur the lines between carnal enjoyment and something more. What started as a quest for a memorable experience becomes a journey of unexpected emotions…