After ascending from his last life to become a Champion our hero has his memories locked. He is told that he must compete in competitive simulations against other Champions in order to earn enough to continue to simulate his consciousness. The competitive simulations have a variety of scenario genres, and may or may not have a game interface.
The first competitive simulation our hero faces is from the Summoned Hero/Traveller to a New World genre, and is set as Fantasy Realistic - no game interface. He must ensure that the person he chose in the simulation's setup survives the end of the world in order to win.