Lin Xia works as a cashier at a late-night convenience store. Her parents died young, and she is solely responsible for her younger brother's tuition and debt. The tired life gradually dims the light in her eyes. Once working overtime until early in the morning, she met Cheng Xu, who smelled of alcohol and was huddled in a corner. This seemingly glamorous creative director of an advertising company has actually been suffering from anxiety for a long time and is on the verge of collapse under high-intensity work.
The interaction between the two began when Lin Xia handed over a cup of hot coffee, and Cheng Xu bought the entire row of oden with apology. Since then, Cheng Xu has become a frequent visitor to the convenience store. When his planning project failed, he would confide to Lin Xia about the pain of creative exhaustion, and Lin Xia would share the joy of his younger brother's admission to a key high school. Cheng Xu used his professional knowledge to help the convenience store design drainage posters. Lin Xia stayed with Cheng Xu all night when he was ill, silently handing warm water and tissues.
They are like fireflies in each other's dark night. By accompanying each other day after day, Cheng Xu learns to face his inner fears and rediscover his passion for life. With Cheng Xu's encouragement, Lin Xia also begins to study design courses to find new possibilities for the future. Two lonely souls clinging to each other in the cold city, using the simplest warmth, completed a journey of redemption that healed each other.
