Cyber Planet 1999: HYPER☆Rune

Rune Ayanokouji lives a life less ordinary with her mad scientist grandfather. When mysterious humanoid robots suddenly pop up all around town, she discovers an alien plot to take over the world. Rune teams up with her friends to fight the invasion ... but when the fate of the world is on the line, who can you trust?

(Source: Tokyopop)