New details about the plot for "Kingdom Hearts 3," which Square Enix has been keeping under wraps, were unearthed from the unlikeliest of places — the game's merchandise.

The box of the Sora action figure by Play Arts Kai (provided by ArikaMiz) show details about "the final struggle for true peace" as the world falls into the control of a single Master.

The "Kingdom of Hearts 3" appears to mark the beginning of the war between light and dark as the battle "has played out exactly as Master Xehanort had planned." A part of the description reads: "To counter the overwhelming darkness, Sora and his friends must gather the seven guardians of light. His best friend Riku and King Mickey seek out a battle-scarred Keyblade wielder, while Sora, Donald, and Goofy set off on a journey to find 'the Key to Return Hearts.' Never-before-featured Disney worlds set the stage for another daring adventure to save the universe!"

"Chosen by the Keyblade, he is the one whose heart's light never fails to shine as a beacon of hope," the description went on to say.

In a nutshell, "Kingdom Hearts 3" will follow Sora as he stops Master Xehanort from igniting another Keyblade. The Keyblade master gets the help of his friends in order to do so.

Square Enix has always kept its cards close to its chest when it comes to "Kingdom Hearts 3" and has always stood by its decision to talk about the game after the release of "Kingdom Hearts HD 2.8 Final Chapter Prologue," which precedes the story of the game.

Even the release date is being kept a secret, although "Kingdom Hearts 3" is heavily rumored to be out and about by March next year for the Xbox One and PlayStation 4.

The developer did share a few details on the gameplay via Twitter, where it shared a couple of screenshots showing two of Sora's new Drive Forms and one of the locations, which is Mount Olympus from "Hercules."