That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022)

Set some time after the ending of Season 2 of the popular series based on the light novel of the same name, Rimuru Tempest, now a formidable Demon Lord, uncovers a conspiracy surrounding Towa, Queen of Raja, and her mystical abilities. Alongside the enigmatic Ogre Hiiro, old alliances are tested and new enemies emerge, in a thrilling tale full of new characters, unforeseen powers and epic battles.