The story revolves around a Chinese immigrant family and two Chinese girls from different backgrounds. Lucia is a second-generation Chinese immigrant born in Spain. Her parents run a grocery store. They work more than ten hours a day and do not speak Spanish. Her biggest wish is to spend her birthday at Burger King like other children and to have a pair of "Normal parents". Xiang is a Chinese girl adopted by Spanish parents. Due to her background, she feels that she is incompatible with the surrounding environment. At the same time, she is also very curious about her biological parents.