On a rainy day, Sohee meets Jun-woo in a small café after the weather forces them to share the same table. Their brief conversation turns into a warm moment that leaves an unexpected mark on both of their hearts. The next day, Sohee waits for his return in vain, leading her to believe their meeting was nothing more than a passing coincidence. But a few days later, Jun-woo appears again, apologizing for his sudden absence and assuring her he hadn’t forgotten his promise. Little by little, the café and the rain become witnesses to the quiet growth of a new connection between them—a relationship that blends gentle moments with the simplicity of everyday life… as if the rain itself preserves memories and brings hearts together.