Sachiko Yasuda

Ruriko's father is a well known scientist who's involved in secret research that even his family doesn't know about. Ever since he moved up to the research laboratory in Hokkaido, Ruriko hasn't heard from him. The only thing that reminded her of his warmth was the green music box that he’d left behind for her. She longed to reunite with her father. The little box played music that lifted her spirits, to a place where everything was perfect.

Grandiene has been waiting for the day of resurrection, the day when the planets are in the alignment of the Grand Cross. Her children descend to the Earth to make it a realm of darkness for her. Ten years prior, Doctor Tatsumi of the Tatsumi Disaster Prevention Institute predicted this event, but nobody believed him. He left his family so he could secretly develop and construct the Rescue System. Now in 1999, Doctor Tatsumi appears again to give the means to save the world to his children as the GoGoFive team.