Caules Forvedge Yggdmillennia

"Berserker, let's go too."

- Caules Forvedge Yggdmillennia.

Caules Forvedge Yggdmillennia (カウレス・フォルヴェッジ・ユグドミレニア) is the Master of Berserker of Black in the Great Holy Grail War of Fate/Apocrypha.

Background
Caules was born into Forvedge family and he is Fiore's brother. He studied magecraft in order to be Fiore's 'spare'. When Fiore and Caules were children, their father gifted them with a dog. The dog was used as a 'bad example' of spirit evocation by their father and died horribly in front of Fiore and Caules. When Fiore became the head of the Forevedge clan and a high ranking official within Yggdmillennia, Caules also became a member of Yggdmillennia, serving as a back-up for Fiore. When he arrived at Romania, signs of the Command Spells began to manifest and he reluctantly accepted being a Master. Fiore brought and provided the catalyst of the blueprints for the "ideal human" for him.

Personality
He is shown as being immature and childish, despite being eighteen years old. He dislike to lie to people.

He had never wanted to be a magus, however he finds joy in magecraft in performing the scientifically impossible phenomena with his hands. Despite this, he never wanted to dedicate his entire life to it as he founds the path of Magus to be inhuman. He doesn't want to be portrayed as someone who would massacre thousands for the sake of research, nor doe he want to be removed from emotions such as sentimentality, compassion and kindness.

He truly cares for his sister; the reason why he studied magecraft was to help carry the burden that Fiore was to shoulder in the future. When Fiore joined the Yggdmillennia, he could have pursued his own path as a Magus but he wanted to be her backup before he became a Master. Caules never wanted to join the Holy Grail War in the first place, but he has to.

He is uncertain of his wish for the Holy Grail. As a magus, he would like to reach the Root but he understand that the grail would only carve out the first step to reaching the goal; the path would still be too far and it would take him more than 100 years in order for him to reach it. He prioritizes his sister over the Root and if Fiore were to die in the war, he would resurrect her with the Grail.

Fate/Apocrypha
When the remaining members of the black faction starts to prepare their summoning. Caules summons his servant using blueprints for the "ideal human". When Rider of Black asks for Berserker identity, Caules answered for her but it later bothers her.

Caules later founds Berserker at the courtyard picking flowers in the garden. Caules originally wanted to clear their Master/Servant hierarchy to her but it fails when Berserker ignores him. He quickly apologies to Berserker for revealing her identity to everyone and Berserker accepts it. He confirms with Berserker that he would like to concentrate on surviving the Holy Grail War with Berserker. Caules and Berserker would clarify their intentions for the Holy Grail and confirm Berserker's legend. As Caules leaves, Berserker presented him flowers as gifts.

Abilities
His specialty is summon magic. As opposed to his genius sister, he is only an average magus.