In Su City, a city full of fireworks, Lin Su Nuan and He Yingchuan got acquainted through an unexpected encounter. From bickering to tacit understanding, from misunderstanding to trust, their lives gradually became intertwined. As their friends and mediators of conflicts, Yu Xiran and Song Youqing also interpret their own unique love journeys. There are frequent humor and misunderstandings between the four people. The pressure, conflicts, family interference and self-growth in life and work are intertwined. As time goes by, they each face the contradictions and scars in their relationships, gradually being honest and reconciled with warmth and laughter, and finally bravely embrace their own love in the warm spring city.