Following the tension of the Yorknew City arc, Gon and Killua transition into the immersive world of to find clues about Gon's father, Ging.

: The duo travels to Antokiba , a town famous for its contests. They win a food-eating challenge to earn a prize, only to realize the "item" they won is essentially junk, teaching them about the card ranking system.

: Shortly after arriving, they are targeted by a senior player who uses a "Trace" spell on Killua. The episode establishes that while players are not supposed to kill each other, real deaths are occurring within the game.