The premise collapses into pure chaos the moment her alien heritage shows up, and the show knows exactly how ridiculous that is. It commits to the bit: absurd mecha designs, comedy that doesn't apologize for being dumb, and a girl who has to process becoming royalty while her dad is still the weirdest person in the room. This is the kind of OVA that swings for the fences and doesn't care if you're ready.
Hikaru's life takes a wild turn when she discovers she's not just another high school girl obsessed with her crush and a certain superhero show. Her father's scientific genius suddenly makes a lot more sense when representatives from a distant planet arrive with shocking news: she's the last heir to an intergalactic royal bloodline. But that's only the beginning of her problems. Turns out Hikaru has been unknowingly safeguarding something far more dangerous than anyone realized: an ultimate suit of armor with the power to reshape the entire galaxy. Now she's caught between ordinary teenage life and the weight of cosmic responsibility. Enemies emerge from across space, all determined to claim the armor for themselves, forcing Hikaru to master abilities she never knew she possessed. Between comedic mishaps and intense combat encounters, she'll need to figure out what it means to be royalty, whether she can trust the allies suddenly appearing in her life, and if she's actually capable of protecting something so monumentally important. Comedy collides with high-stakes action as Hikaru transforms from dreamer to defender.