T1xC41 - Controlator

Everyone has forgotten April's birthday, so when a stranger gives her a present, she's delighted to accept it. It's one of Negu's inventions, which makes her do things against her will. When April, controlled by Negu, manages to steal the Glove of the North, Pai and Xia prove that they had remembered her birthday really, and get April to remove the device that's control her.