When Xia Jing was a child, he never understood why, as a third-generation immigrant, he still had to learn Chinese as his mother tongue. Wouldn't it be nice to be able to communicate with grandparents who occasionally come to visit? It wasn't until he fell in love with Liu Xinran at first sight at a party that he sincerely thanked his grandparents for visiting him every year, thanked his mother for his careful guidance, and thanked himself for not being rebellious during adolescence.