So it turns out the dude in the devil costume wanted to be a manga artist years ago and pitched a yo-yo manga. The guy was told the manga would never sell and his dreams were crushed. When the Hyper Yo-Yo Burning manga started, he went a taaad bit crazy. Shou lost his battle against the dude and Moeru managed to find him in the nick of time.
Training time!
The training this time is...making the guys trace a manga page 1000 times over with a pen/weight combination thing. Their fingers get used to the grip in the end and they work out a new attack thanks to it. (Crazy dude always trying to sell Moeru fake goods shows up too) Time for battle on the next episode!