Kaikaina "Kai" Grif. Known as "Sister". Female. Blue Team. Hardcore party-girl. Bit of a junkie. Very low intelligence. Colorblind (Deuteranopia). Described as a ‘loud slut’. Bisexual. Not fussy about stripping naked. Hosts raves in the Blue Base when it is available. In good shape & flexible. Later a skilled businesswoman by hosting festivals. Kai is the sister of Dexter "Dex" Grif ("Grif", who is on the Red Ream); They care greatly about each other, but Kai's behavior causes arguments.