From the official discord:
>"Will there be a SEA Server?
>Sadly we do not know yet, though SEA players can join the global server by downloading the app through APKPure.
(https://apkpure.com/shining-nikki/com.papegames.nn4.en)
>You will be able to recharge ingame as long as you have a credit card or Paypal that supports international payment."