Gupi and the King Who Doesn't Smile (2026)

When Gupi and her friends set out to deliver a cake to an abandoned apartment in their building, a simple errand turns into a doorway to a strange, shadowy realm. After passing through a closet, they arrive in a gloomy otherworldly dimension that holds the palace of the King Who Does Not Smile, a ruler whose endless sorrow has spread across the entire land. Discovering that the dimension’s residents have lost their joy because the King never smiles, Gupi begins trying every possible method to bring happiness back to the kingdom.