Hyper Speed GranDoll

Hikaru's life as a high school student is typical except for her genius father, who's a mad scientist. She shares her daily life with her best friend and spends her free time fantasizing about a boy and watching superhero shows. However, her peaceful existence is disrupted when she learns about an unknown past that involves her being a member of a royal line from a distant planet. Hikaru also discovers she's been unknowingly safeguarding a powerful mecha known as the ultimate armor, which holds the fate of the galaxy.