The story of the play, as with all the previous versions, depicts the Pearl Harbor Descent Mission on December 8, 11941, a prequel to the NieR:Automata video game.

Because of the headmaster's sudden thoughts, Ninjutsu Academy will host a sports event. It seems like that it will have the committees compete against each other, would that be all right? All committee have different number of members, teams haven't decided yet, Kirimaru will not attend due to part-time job, still haven't decide who will say the oath yet, head figures are flying around, somehow Dokutake are here too. Because the headmaster makes all the decision all by himself without second thought, everything are messed up right before the sport event!