Go to settings, have a VPN (Spider OVPN) and change your App store’s region to Japan (Settings —> Media and Purchase—>View Account —>Change country/region. You can also skip the Billing and stuff as it isn’t important(unless you actually live in Japan)) After that, you make a new Apple ID account. Then you can install JJK phantom parade(use the App Store) and play!(Use a VPN too) Have fun playing!