Kevin moved to a new city with his parents again. He had forgotten how many times he had moved, and his parents were busy with work every day, traveling both domestically and internationally, in order to create better living and learning conditions for Kevin.In a strange city, apart from the nanny, without the company of family, I feel extremely lonely inside. Kevin passes through an intersection every day when he goes to and from school. It is a marketplace with a dirty, messy, and poor environmentAll kinds of people, every time they pass by Kevin, they always wear headphones, as if the whole world has nothing to do with him. The misunderstanding of being picked up by a waste paper grandma on the street once made Kevin start to understand these things that he usually doesn't want to doYiduo glanced at the Ishii figures and understood their parents' hardships and difficulties from them, ultimately agreeing to their parents studying abroad.