Crimson is no hero. He will manipulate and use others if it furthers his goal, and that callousness is precisely what makes him a needed ally against dragons.

Dragons have another weakness aside from sunlight and silverine: pride. But Ultimatia is not like other dragons.

Ragna met Ultimatia before in another life and he did not emerge from that encounter unscathed. Now, in this life, dragons are disappearing and Ultimatia needs to know why.