The idol-turned-actor Yujin, facing a bed scene shoot with a senior actor, seeks help from her friend and fellow actor, Seonju. With no romantic experience, Yujin's request is simply to sleep together just once. Seonju casually agrees, but as she witnesses Yujin's hidden vulnerability and raw expressions, she begins to feel a strange emotion that she never anticipated…. *** "Seonju, can you help me out?" On a scorching summer day, Seonju, sitting on the sofa and scooping ice cream from a tub, slowly turned her head. Her gaze fell on Yujin's pale face, fidgeting with a spoon in hand. "Sure, what is it?" Seonju raised an eyebrow nonchalantly. The pale face, which had been looking down, bit her lip nervously before finally meeting Seonju's eyes with a serious expression. "First, promise me. No backing out, okay?" "Yeah, what is it?" With another light agreement, Yujin's small lips, looking a bit tense, slowly parted. "Can we sleep together just once?" A quiet love story between a cat-like child actor and a flower-deer-like idol actor.