An unexpected collision around a narrow alley corner brings Mengmeng, an illustrator pursuing her dreams, together with Shen Yi, a man struggling under the weight of life's responsibilities. One is devoted to capturing the city's everyday beauty with her paintbrush, while the other has put his dream of becoming a designer on hold to work tirelessly for his mother. From keeping each other company out of a sense of guilt to gradually falling in love, they join hands to overcome the sorrow of losing their loved ones. Supporting one another and protecting each other's passions, they weather countless storms and ultimately make a promise to spend the rest of their lives together. Through companionship, they turn ordinary days into something truly warm and beautiful.