In the shadow of his father's high standards, 17-year-old model student Bae Sugu harbors a hidden fascination with swimsuits. Misunderstood and burdened by this unusual passion, Sugu finds himself at a crossroads when caught snapping photos by the pool. Pressured into a peculiar situation by his homeroom teacher, Sugu grapples with a stagnant life. Will he discover a way to break free from this impasse and reignite the pulse of his heart?