(Please note: This is real-life tennis, and has nothing to do with The Prince of Tennis.)

In 2011, in the world of men's tennis, Federer was at the tail end of his first peak, Nadal's reputation as the King of Clay had resounded throughout the world, Djokovic had become the third force in tennis, and Muller was at his peak, seeking a breakthrough in Grand Slams. The Big Four had already taken shape, becoming a solid iron wall that blocked almost all the world's men's tennis players who were pursuing championships.

That same year, China's female tennis stars were conquering tournaments around the world and winning their first Grand Slam title, sparking a nationwide tennis craze. However, men's tennis remained stagnant. In a small village in Jiangnan City, a soul from the future opened his eyes and decided to enter the tennis world...