Gaikotsu Kishi-sama Tadaima Isekai e Odekakechuu Episode 11

Arc, Ariane and Ponta arrive at the border town of Kaysehk. In order to find the captured elves, they separate and Arc learns that strange cries have been heard late at night from a fortress to the east and that people have been mysteriously disappearing.
On his way to meet up with Ariane, Arc rescues a “street girl” from three kidnappers (the girl being pretty and clinging gratefully to Arc doesn’t sit well with Ariane).
The failed kidnappers were working for Fumba to collect “food” for his controlled monsters, and Fumba punishes them by feeding them to his giant white tiger monster.
Ariane has learned that captured elves had been brought to the fortress four months before and insists on investigating the fortress. Sneaking in and finding a secret passageway, they arrive at an underground chamber where they confront Fumba.
Suddenly, Ariane attacks Arc, bewitched into believing she is training with her sister Eevin. Arc spots an imp hidden inside Ariane’s cloak hood; Ponta rips it out and Arc destroys it, freeing Ariane from its control.
Fumba reveals that he is a Rozombanya Monster Sorcerer who can make monsters obey him. Arc questions him about the elves, but Fumba tells him that most of the elves were used in the Empire’s magic experiments while he used the remainder as “food” for his “pet”.
Enraged, Arc quickly kills the white tiger monster, and Fumba orders his other controlled monsters to attack. Arc is easily able to slay the monsters, but when an ogre attacks the unconscious Ariane, Chiyome appears and uses her Water ninjutsu to overcome it, telling Fumba that the other Jinshin ninja has already dealt with his other monsters.
Suddenly the ground begins shaking and Fumba flees, saying his greatest monster has awoken. Arc teleports everyone outside, where they are confronted by a five-headed Hydra.