Evading the angry mob, the gang discover that the source of the town's water is being poisoned by the man from earlier, who is revealed to be one of the Devil King's army leaders, Hans the Deadly Poison Slime.

Kazuma's party is suddenly alerted by an outrageous letter delivered by Yunyun. The letter requested that they come to the Crimson Demon Clan's village. The bunch head on over and make use of their time there, but trouble arises when an enemy general arrives!