Protagonist: Lin Wan, 27 years old, is a window clerk at the urban street convenience service center. She has a gentle and delicate personality, and is tough and transparent. She is not good at arguing but has a bottom line in her heart. She has been rooted in the grassroots all year round, handling trivial matters of people's livelihood, seeing all kinds of things in the city, and slowly finding her own self-worth in ordinary work and life.
The heroine's best friend: Su Xiao, a freelance photographer with a sassy and transparent personality and a love of freedom. She is Lin Wan's most solid support and can always wake her up when she is confused and trapped.
Male protagonist: Lu Ze, a grassroots public interest lawyer who is calm, restrained, gentle and powerful. He has been working on the front lines of community legal education and people's livelihood assistance all year round. He met Lin Wan because of the mediation of people's livelihood disputes. They fit in with each other and healed each other in both directions.
Supporting role: Aunt Zhang, an elderly person living alone in the community, enthusiastic and kind-hearted, a frequent visitor to the window, and represents the simplest common people.
Supporting role: Sister Li, Lin Wan's colleague, a senior window clerk, transparent and worldly, enthusiastic in treating others, providing advice and accompanying Lin Wan's growth along the way.
Intention: Warmth between street community staff and residents