Earlier this week, the Kingdom Hearts Union χ Dark Road application was unexpectedly delisted from the Apple and Google Play stores.

The Kingdom Hearts Union χ Dark Road mobile game contained pivotal lore, key story details, and an in-depth plot for the basis of much of the Kingdom Hearts series. Unchained X--previously known as Union X--and Dark Road did receive a cutscene compilation people can watch to experience the story, but playing the game seems to now be a bygone pasttime for Kingdom Hearts fans.

This delisting poses great problems since one of the main characters introduced in the mobile game, Strelitzia, also appears in the first Kingdom Hearts 4 trailer and is teased to play a major role in the new installment alongside Sora.