Yi is one of the second generation of Ninja Turtles, raised and trained by Casey Marie Jones after the death of all of the originals. At some point after Michelangelo died, Casey Marie acquired four baby turtles and implored them to grow up quickly so she could train them. She mutated them so that she could accomplish this.

Yi can be considered to be the Donatello of the group, she is smart and likes to tinker with electronics and machinery, often liking to work with April in her workshop.

(Note that for this issue the turtles are babies and so your voice will need to reflect that, please try to sound as young as possible when doing your lines)