Zatch Bell! S01 E136 Faudo's Revival Draws Near. Return Device Activated. Rivals Stand in the Way.

The enemy Mamodo in the room are revealed to be Kardio, his partner Sauza, and Arth. Kardio aims an ice wave at the sleeping book keepers but is intercepted by Momon and Elle. Kiyo and Sunbeam awaken and they also join the battle against the pair.