Chiro's Girl is the 1st episode of the series.
Plot
Chiro falls for a new girl, Jinmay, not knowing that she's a robot under the Skeleton King's control, but even Jinmay doesn't know it. Jinmay's monkey companion, Sakko, who was secretly a spy for the Skeleton King, took her to the Skeleton King's lair and then constructed her to be evil. Then it's a showdown between the monkey team and an evil robot Jinmay, under the control of Sakko. Jinmay must remember the good memories with Chiro to get back control of herself, and then stop the Skeleton King.