You have been wanting to be in the Japanese U-20 soccer club since you discovered soccer. Unfortunately... You terribly lost in a match with some other soccer club because of your 'caring and selfless' personality. You had lose all hope until one day..

A letter was in your house. It was from 'Japanese Soccer Union' where it says you have been chosen to be groomed as a professional athletes.

Now you are stuck with 300 other participants in this weird Blue Lock things..