1) Do a system restore on the Vita, DO NOT FORMAT THE MEMORY CARD. System will restart. 2) Use a real Japanese address to set up a new Japanese account. When system video plays, hold the on button for 2-3 seconds to turn off. Turn on and system is setup and you don't have to watch the lengthy video. 3) Activate system on Japanese account. 4) Use Japanese points card (available online or in Japan) or Japanese VISA card (if you have one or know someone willing with one) to buy game. 5) Play Japanese content.
Advantages and Limitations: - demos work on both accounts - you must do the system restore every time you want to use other account - back up memory card contents to in case you accidentally format the card - paid content can only be used on the account in which the region it was purchased