Meet Pecharunt, a newly discovered Mythical Pokémon, in the epilogue to The Hidden Treasure of Area Zero for Pokémon Scarlet and Violet. To celebrate the release of The Hidden Treasure of Area Zero epilogue, a Neo-Kitakami Case can be obtained using the code: NE0R0T0MC0VER.

Get a Rotom Phone Case in Pokémon Scarlet or Pokémon Violet!​

To celebrate the release of The Hidden Treasure of Area Zero epilogue for Pokémon Scarlet or Pokémon Violet, you can claim a Neo-Kitakami Case via Mystery Gift. Swap your Rotom Phone case to the Neo-Kitakami Case as you enjoy your adventures in the epilogue!

To learn the password, check out “Pecharunt Awakens! | The Hidden Treasure of Area Zero” on the official Pokémon YouTube channel.

YouTube Clip - Pecharunt Awakens! | The Hidden Treasure of Area Zero

Source: https://www.youtube.com/watch?v=dKgXfoC7EOE

YouTube Clip - Pecharunt Awakens! | The Hidden Treasure of Area Zero (Japanese)

Source: https://www.youtube.com/watch?v=j5JMlvOhBrw

Get the Neo-Kitakami Case via Mystery Gift

Use these steps to claim your in-game gift.

1. Launch your Pokémon Scarlet or Pokémon Violet game.
2. Select Poké Portal on the X menu.
3. Select Mystery Gift, then select Get with Code/Password to connect to the internet.
4. Enter the password.
5. Watch as the gift arrives in your game.
6. Be sure to save your game.

Notes:

• Passwords will never contain the letters I, O, or Z.​
• You need to connect your Nintendo Switch system to the internet to claim this gift.​
• To connect to the internet, your user profile must be linked to a Nintendo Account. (This does not require a paid Nintendo Switch Online membership.)​
• This password can only be used once per save data.​
• It takes approximately 1 to 1.5 hours of play time before you are able to access the Mystery Gift feature.​
• Distribution of the Neo-Kitakami Case for your Rotom Phone may end without prior communication.

Source: https://scarletviolet.pokemon.com/en-us/news/neo-kitakami_case/