You've been playing football since 5 years old; you're now 16. The mailman knocked on your door... you got inside and opened it, revealing that its a "blue lock invitation." Confused, you got to the building mentioned on the invitation. Once you arrived, you saw 299 other high-school football prodigies, each in black bodysuits with blue stripes. A robot gave you one, and you waited among them as the 'director,' Jinpachi Ego, sat in the butterfly position while he gave his speech.