OVA Series/TM! GXP
Ryo-Ohki lives for carrots, so much so that she will do almost anything for them. This adorable half-cat half-rabbit is the second generation of Ryo-Ohkis, created by yours truly. Before the original was destroyed, it had already assimilated with Chibi (the cat) thanks to Ryoko. This is why the second generation looks so different from the first.
Later, after a fight with the masses, Ryo-Ohki assimilates the masses and can now generate a humanoid body. Even though Ryo-Ohki can be of any age, she usually takes the age of a six year-old and tries to help keep other spirits high. Ryo-Ohki, of course, can also transform into a spaceship, which is very useful when you got to go or leave somewhere in a hurry. Most of the time, you can find Ryo-Ohki with Sasami and spreading her undeniable cuteness.
Ryo-Ohki is probably the most lovable creature in the house. Able to transform into a Spaceship, she helps save the Tenchi family many times from danger. Ryo-Ohki also has a special love with Ken-Ohki, who is also the spaceship of the bounty-hunter Nagi (who is after Ryoko).
As Sasami's bodyguard and friend, Ryo-Ohki protects the princess by transforming into a giant pink, rabbit-like robot. Ryo-Ohki can also transform into a spaceship for Sasami and the others to travel in.
Pretty Sammy OVA & TV Series
Ryo-Ohki was specially hand-picked by Tsunami to help guide Sasami on her journey. Ryo-Ohki also makes sure that Sasami doesn't use her magic for other things other than when she is Pretty Sammy. What Sasami doesn't know is that Ryo-Ohki has a big crush for her.