How can I get bonus EXP cards by completing 100% map exploration?

[nuzulspyware08]

Just as the title says, how can I get them?

[MementoMori]

Talk to one of the [Wings of Vibora] NPC (Lena in Klaipeda or Rosia in Orsha), then tell them about your adventures.

[kyle_ruiz6]

^ Also you get x3 exp cards per fully explored map, the level of the card depends on the level of the map