After an attack by a swarm of wasps, the Dungeon Master greets the kids. Eric expresses that Dungeon Master's presence is always convient for him and his power is going to waste. The Dungeon Master then explains that his job requires him to give his attention to many places that need him and that his job is never an easy one. When Eric states that if he were dungeon master it would be the easiest job in the world, the Dungeon Master takes him up on his offer. For one whole day, Eric is the Dungeon Master. His last instructions are to head to Dark Haven to seek the Golden Grimoir, which holds the key to everything they seek. When everyone starts to think Eric being the dungeon master is a bad idea, Eric promises to get everyone home once he figures out the powers of being dungeon master. Soon Venger finds out about Eric being dungeon master and begins searching for his chance to aquire the power of Dungeon Master.