I decided to make this app after hearing the news that the 2020 Sembat tournament was cancelled. I think many people were disappointed, but above all, the regrets of high schools, their athletes, and the people involved in their participation were immeasurable. For those who have to accept this fact and still have to move forward, I thought about what I can do at least and expressed it in this way. Above all, it would be great if we could help the players, the people involved in high school base