Star☆Twinkle Precure S01E47 - Save Hua! The disappearing universe and the great darkness!

The Starscape Alliance rescue and tend to all the Notraiders, with Garouga explaining to the Cures that Ophiuchus took Fuwa and the Star Princesses to their world to complete the ritual, as she needs the piece of the planet she brought with her when she arrived. Though the Notraiders can no longer warp to their base, Topper reveals the mission to planet Guten allowed to locate the planet with the Cures and their former enemies using that time to reconcile with the Notraiders offering their help. The group arrive as Ophiuchus is ready to commence the ritual to erase the universe, Notraiders distracting her so the Cures can reach the Star Palace. During the confrontation, exiled by her fellow Star Princesses when she opposed their decision to bestow half of their power in all living things in the form of imagination, Ophiuchus how she gradually regained her powers and assumed the identity of Darknest to exact her revenge. She also reveals Fuwa is part of the Star Palace infused with the other half of the Princesses' power, and that she cease to be if the Cures were allow to commence their ritual. The revelation causes the Cures become hesitant to fight back against Ophiuchus, but Fuwa takes the girls' Twinkle Imagination to fight back, sacrificing herself to save the universe.