You can see other players’ travelers near the Online Liaison NPC’s location. When you talk to them, you’ll have the following options below. You have to wait until next week to find a different set of travelers from other players.
Buy the traveler’s imported item or weapon at a discounted price. You can only buy an item once per traveler.
This can be a Solo Recon or Four-Person Recon. In this mode, you have to find the traveler within the given amount of time. During the last 30 seconds, the traveler’s immediate location will be highlighted in the map. If you’re successful in finding the Traveler(s), you’ll obtain resources as reward. Succeeding this challenge multiple times will earn you a battalion. You can only take the Recon challenge once per weekend and this activity doesn’t consume an Activity Point.
You can hire a Traveler to become an adjutant for a battle. After the battle, they’ll sometimes teach the host unit an Ability or Combat Art that they know. To know which ability or combat art they’ll inherit, look for the green double arrow icon as shown below.
When you’re satisfied with the traveler you want to hire, pay the required amount of gold. You can hire traveler Adjutants as many as you’re Adjutant limit allows. Adjutant travelers does not earn Support, even if you have the same character in your army.