Our heroine is a female high school student in the real world, and she is a very good tennis player, but once she thought about giving up her favorite tennis because her sister died for her, but before she died, her sister said that she would play for her instead and face life with a smile. Our heroine Su Yingying agreed to her sister. But from now on, our heroine will be more She practiced tennis, but she did not play for herself, but played for her sister, and she lost her passion for tennis. However, our heroine suddenly traveled from a century-old cherry tree to the world of the tennis princes. Since then, many things happened to our princes, including sadness, joy, separation, and reunion... This is a different time travel with laughter and tears.