Chen Ye, a basketball exchange student from Tianjin, drags a broken suitcase into a shared apartment in Mangwon-dong, Seoul on a stormy night, intruding into the restrained life of Jiang Suyue, a piano major girl. The passionate and reckless boy meets the cold girl with extremely strong boundaries, slowly growing closer through trivial matters like slippers and umbrellas. The roommates in the shared apartment each have their own personalities. Accompanied by the expiration of the exchange period, family pressure, and the secrets of the old house coming one after another, the two go through a tug-of-war and finally understand that love is not about making choices for each other, but being willing to stay together through wind and rain.