Ost

"We makes them cower!"

Biography
Ost is a parasitic demon serving under Boser and Sonya within the forces of darkness. He has the ability to control a variety of demons, but the overuse of his powers would be fatal. He is the brother of Est, a demon with similar abilities.

Story
Elwin and his party first encounter Est and Ost when Sonya and her horde of demons interrupt the ritual to unseal Langrisser.