Castle In The Sky is a fan fiction story based on a Filipino game in 2024 named "Until Then". The story follows Mark Borja and his moments of déjà vu months after the events of The Ruling (earthquake disaster), a global disaster that caused widespread casualties and infrastructure damage across the Philippines. Castle In The Sky represents the first life cycle of characters, stories and plot twists that are all in Mark's memory or what we call a parallel universe. The story is also connected to a déjà vu experience and, among others, also includes Scientific Experiments to determine the reason behind the cycle of realities. This story also introduces us to what we call a "parallel universe". DISCLAIMER: The developers of the said game gave the author proper permission to write a fan fiction story based on their game.

In the shadows of Madrid's criminal empire, a cold-blooded assassin is sent to kill the city's most powerful mafia heir-only to realize he's the boy she once loved before the massacre. Now hunted by their past and trapped in a deadly game of power, they choose between trust the enemy they remember, or destroy the only person who ever knew who they really were. In a world of betrayal, bullets, and whispered names, one question remains: Will love save them-or finish what the fire started? One bullet. One kiss. One chance to rewrite fate.