Pokémon Passwords

Like past games, Pokémon Conquest has a password system. Here, when you're in the main overworld map, you can access the password option. This allows you to enter a password which activates a Pokémon within the area for you to befriend and use in your travels. These Pokémon are typically not found in the area or anywhere in the game and so require the password to be obtained

Once the password is entered, you don't necessarily see the Pokémon right away. Sometimes, you will be told that there is an influx of them in a certain area, so you just need to wait for them to appear after the password has been entered