Hyper Speed GranDoll

is a Japanese action Playstation game produced by Bandai on July 24, 1997. An OVA series by Zero-G Studios was produced in 1997 and licensed by Central Park Media in the US.

Plot
While Koichi Amagi is making a marriage proposal to his beloved Miki, a space ship fell right in front of them. Inside the ship, there was a little girl who they adopted and named Hikaru. Years are passing by normally while Hikaru is living her life as a normal girl, with a mad scientist father. Someday aliens are appearing to retrieve Hikaru back from Earth as she is an alien and the last member of a royal family line of a planet far away.