Studio Z announced that the mobile game Shaman King: Funbari Chronicle will end service on July 12, 2023 in Japan. That is also the date that it will start refunding any premium currencies that accounts still have at the time of the closure. More information on how you can go about doing so will appear at a later date. [Thanks, 4Gamer!]
According to the official website for Shaman King: Funbari Chronicle, the reason Studio Z decided to end the mobile game is because it has come to the conclusion that it will be difficult for the team to provide service and content that will be satisfactory for its player base. It thanked its players for their support over the years. Items that require paid Tama will stop appearing in the store from June 12, 2023 so if there is anything you wish to purchase, then that is the cutoff date.
There will still be updates to Shaman King: Funbari Chronicle before the game ends. One of these updates will include the addition of characters in Design Contest costumes. As well, Studio Z is considering an offline version of the game after service ends. This will be so that players can still enjoy the story, art, and 3D models. It will announce in-game whether it decides to do so.
Shaman King: Funbari Chronicle is available on mobile devices in Japan. It will end service on July 12, 2023 and more information will come out on whether an offline version will appear.