Chen Mo (takeaway website manager), 26 years old, is an orphan whose parents died young. He grew up in a welfare institution and developed a withdrawn and aloof character. He is familiar with every corner of the city because he delivers orders all year round. He is cold on the outside but passionate in his heart and has a strong sense of justice against injustice.
Su Wanyue (volunteer of a charity organization), 24 years old, is the only daughter of a philanthropist. She is a "silly white sweet" who is extremely well protected by her parents. She speaks with a soft and cute ending, and always talks about "there are more good people in the world". When she first met Chen Mo, she fell in love at first sight because he saved her, melting his guard with warmth.