Set in the world of the Uchiha clan, one year before the clan's massacre. Uchiha Setsuna initially believes he cannot change the fate of his clan. But then he receives a life simulator. Through the simulator, he trains and grows stronger, eventually reaching the level of a Genin before the age of 7. The simulator allows him to choose his rewards, either the chakra level of a Genin or an item he obtained during the simulation.