Gunther Strauss

Archduke Gunther is a former Demon Lord who long ago was called the Emperor of the Night, eventually he stopped being a Demon Lord and now serves as Ruminas' strongest Vampire Noble.

Appearance
When pressed into a corner, Gunther reveals the red eyes and sharp teeth typical of his species, even though he's long evolved beyond the need to drink blood.

Personality
Gunther frequently quarrels with his fellow nobles.

Despite having long evolved beyond the need to drink blood, he show his savage old self when pressed, his self as the Emperor of the Night.

Biography
He was once a Demon Lord known as the Emperor of the Night, but has long since fallen to serving Ruminas.

Tenma War
He fought against Furuki Mai alongside his fellow nobles, but was defeated, he survived however thanks to Zero, Mai and Arios fleeing from Veldora's final attack, which would have killed them.

Abilities
As an Archduke Class Vampire Noble, Gunther's ability is comparable to Karion's, he possesses high regeneration capability and has evolved to the point where he can absorb Mana from his surroundings, thus eliminating any need to drink blood.