Tenchi Muyo Help!!!

It really depends on what you're viewing. Some spinoffs suggest that Ryoko was created from Mass and Energy in Washuu's lab. However, the TV series suggested that she was created from Washuu personal like, as in womb. In the Tenchi Muyo! OAV, Sasami is *part* of the Juraian goddess Tsunami. In the Magical Girl Pretty Sammy OAV, Tsunami is still a goddess, but she is a completely separate entity from Sasami. In the TV series, Kiyone didn't even make an entrance!

As for relations. Masaki Yosho (aka Katsuhito) is/was effianced (engaged to, for all you people who don't know what it means) to his sister Ayeka. They share a younger sister in Sasami. At least, that's how it is in the OVA, I think.

That makes Ayeka Tenchi's aunt. Odd, but true. As is Sasami.

I believe Azusa (Emperor of Jurai) has a close familial tie in to ONE of his wives. I'm not sure which.

Azaka and Kamedaki (the two wooden posts) are actually deceased soldiers who's patterns were instilled in the robot scratching posts.

As far as it goes, Washuu is Ryoko's mother, and Ryoko is Minagi's mother. That's only as far as splicing and science goes though.

Mihoshi is actually the daughter of a colonel or admiral in the GXP, while her mother is a sort of volunteer that everyone respects in GXP HQ. If you don't know what GXP is, it's short for Galaxy Police. Anyway, her Aunt (I believe) is also a high-ranking officer. I just may have gotten mother and aunt mixed up. I lost the Tenchi Muyo! GXP episodes that I did have, so I can't actually confirm...which really sucks.

Kagato (as appeared in the OAV) is Washuu's assistant.

Ryo-oh-ki was either found as it was, or created from a smaller portion of the Mass and Energy that Ryoko was made of.

Tsunami, in both OAV and TV form, is the Patron Goddess of all of Jurai. She also grants the ability to ships and certain people (Tenchi uses 3 and Yosho, I believe, uses 1) to use her Wings of the Light Hawk.

Seina (from TM! GXP) is just a friend of Tenchi's with a big bad luck problem. His acquaintances are completely separate.