Every year, Kosuta and its neighboring kingdom, Sin Lau, had to each offer a person as a sacrifice to the Mythic Dragon to appease its rage, preventing it destroying both kingdoms. One year, Kosuta selected Seto Kaiba as their offering. However Kaiba, Yugi Muto, and their friends fought to defeat the Mythic Dragon, sparing the sacrifices.
- Yu-Gi-Oh! episode 04444: "Legendary Heroes, Part 2"