The King's Road

The King's Road is a road in Westmarch, leading directly to the country's capital.

In-game
The King's Road is a Westmarch zone in Diablo Immortal. It is the first zone the player arrives at, immediately after the Dark Wood. As soon as the player arrives, the "Cain's Request" quest will trigger.

Trivia

 * From an in-universe standpoint, the road may be linked to the Justinian Road, given how the zones follow each other in-game.