My love for badminton led me to get to know my coach Liu Yu, an ordinary but extraordinary person in my eyes. He lived an exciting youth during his badminton years, but he was about to get married. Year after year passed with conflicting thoughts. I adhered to my principles, did not disturb his peaceful life, and hoped that he would be happy until he matured and grew up. When people suddenly look back, they realize that secret love is such a feeling. It gave me courage when I was frustrated, gave me hope when I was sad, gave me determination when I was hesitant, and was finally forgotten by me as time went by.