ANIME

This show to me is really confusing, I understand only some parts, but not most especially Eureka. I think she is weird.Also why is the show called Eureka seven? I know Eureka, but there are not seven people in the Gekkostate, so what does the Seven part mean? If you know tell me if you comment,please i'm curious.

I dont know how to summarize, but i'll try.Well Renton lives with his grandpa, because I think both his parents died and his sister ran away. Anyways, so everything's peaceful, suddenly a giant machine crashes into their house and ends up being Eureka, piloting it. Renton falls in love with her,just like that and she convinces him to join a rebel band called the Gekkostate. There he meets the crew, I only know two of their names. Holland and Talho. Then his adventures begin.