Seoul Elite Academy of Young Athletes is the most prestigious sports specialty school in South Korea and only those who are the most talented in their sport are chosen to join this school. The Academy produces the most number of students who eventually go on to become professional players of the sport they specialised in during their time at the Academy.

Hyunseung is the star tennis player of the Academy's tennis team. During senior year, however, Hyunseung is chosen by his homeroom teacher to guide a new transfer student around. Yong Junhyung comes from the Seoul University High School, which is affiliated to Seoul University, the top university of the entire nation.

All-Stars will unveil the history between Hyunseung and Junhyung and follow them as they walk on the road of renewed and new friendships as well as recovery.

IMPORTANT NOTE: I have switched up an important detail in this story, which is the fact that Hyunseung and Junhyung play on the ice hockey team. They are now tennis players and I have made minor modifications to the story to the parts involving details about Hyunseung or Junhyung being hockey players. If you spot anything that I missed out in the first 5 chapters, please do let me know. It will be unaffected from the 6th chapter onward as I will be writing them as tennis players from the 6th chapter on. My sincerest apologies to my readers who are confused by the sudden change, but it was necessary as I realised that I do not have enough knowledge of ice hockey to write about it realistically.