Joukyu Mazoku no Otoshikata

Humans and demons have been at war for countless eons. But suddenly, a hundred years ago, the stalemate began to change with the emergence of Demon Breakers.

The Majesty has ordered one of these Demon Breakers, Dia, to subjugate a captured senior demon, Bahamut which other trainers could not handle. Bahamut, is captured with a chain, b...