Xenoblade Chronicles 2

Xenoblade Chronicles 2

According to legend, the people of Alrest originally resided with their creator, the Architect, in Elysium, atop the World Tree. However, for unknown reasons, they were later expelled from the land. The Architect then sent the Titans to save them, and since then the Titans have been the home to all inhabitants of Alrest. However, the Titans are not immortal, and eventually they will perish and sink beneath the Cloud Sea.
An armistice between rival nations the Empire of Mor Ardain and the Kingdom of Uraya has brought around a decade of peace, but tensions are extremely high, almost on the brink of war.
After a salvage results in an unexpected battle with a King Crustip, Rex, who lives on the back of the Titan Azurda, witnesses the death of another Titan in the distance. Azurda comments on the inevitability of every Titan's death, while Rex realizes this would result in conflicts as land becomes more limited.