Chibi Chibi! Chibi Chibi!!! He he. Seriously...
Chibi Chibi is the soul of Sailor Cosmos who happens to be Usagi in her
ultimate and final form (I think). Anyway. They ... she? Whatever pronoun
you use... This Senshi is the most beautiful of them all in my opinion.
I am biased because this is another of my favourites. ^_^. Chibi Chibi
is a cute little kid who appears one day and can only say Chibi Chibi or
the last words that were said to her. She is a Senshi though and has very
powerful attacks. Sailor Cosmos is Usagi's ultimate form. She was frightened...
and feels that she failed... so she sent herself back in time to stop the
destruction of the universe... and viola... we have Chibi Chibi who is
always there to cheer up Usagi and make us all laugh.
In the anime ChibiChibi is the soul of Sailor
Galaxia who sent her to find the light of hope - Usagi. It has been rumored
that Cosmos in the anime is actually the guardian of the cauldron.... but
I prefer the manga version.