You're A Good Friend, K.O. - S3.E14

When the power goes out at school, K.O. and Dendy go out and investigate. K.O. feels bad for Dendy because the other students continuously praise him, but look down on her. They discover that Small Calf Demon is behind the power outage, but when K.O. gets kidnapped by him, Dendy must step into action and use her techno abilities to defeat the villain.