In the quiet town of Mooyung, Dokyung returns to her roots after failing at love and work, only to find herself face to face with Doh Joon, a renowned actor with captivating eyes. A chance encounter at her mother's old corner store sparks a whirlwind summer affair between Dokyung, a woman hesitant to love again, and Doh Joon, a man who longs for forever. As their days grow hotter and nights more intimate, Dokyung clings to the idea that their relationship is fleeting, just a moment in time. However, Doh Joon is already envisioning a future that lingers long after summer ends.