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 may be a brilliant mad scientist, but the real shock comes from a past she never knew: she is the last surviving heir of a royal line from a faraway planet. But that's only the beginning of her problems. Turns out Hikaru has been unknowingly safeguarding an ultimate suit of armor that could decide the fate of the entire galaxy. Now she's caught between ordinary teenage life and the weight of cosmic responsibility. Revealed as an alien with superpowers, she pilots the hyper-speed Grandoll Armour as humanity's last hope against a monstrous alien invasion. Comedy, fan service and giant robot action collide across three OVA episodes as Hikaru goes from dreamer to defender.
