Board Thread:Questions and Answers/@comment-5342738-20130602052105/@comment-14250-20150101235902

Snake>Turtle would be weird for Karai, I don't like it.

Mona Lisa should probably be referred to solely by her chinese name, and could be perhaps a very different breed of turtle (sea turtle?) and maybe linked to Ho Chan in some way?

She wouldn't have to become a regular member of the cast, a go-back-to-china explanation would be very easy to get her out.

Or you could do something grimdark like kill her off or have her permanently changed into an Astral Ghost (like Ho Chan) allowing her to come back occasionally when mystic help is needed by turtles but not have her hang out in their base