Demi-Servants (デミ・サーヴァント, Demi-Sāvanto?) are humans who have taken the Saint Graphs of Heroic Spirits into their bodies, functioning as Servants. While similar to Pseudo-Servants in the end result, the process of forming one is different.


As with other forms of Heroic Spirit Possession, each Demi-Servant is granted the abilities of the Heroic Spirit within them. One special characteristic is the Skill Possession Inheritance, granting them one Skill from the possessing Heroic Spirit. This skill is inherited by the Demi-Servant and sublimated in a self-taught manner.

Within the world of Fate/Grand Order, they are said to fundamentally be beings that should be unable to exist, similar to the concept of a vampire being unable to birth a mixed-blood dhampir. Mash is the only known one in existence, brought forth through various cruel experiments.

Within the world of Fate/EXTRA Last Encore, it is a process known to be able to be performed by taking the data of a Servant into the body of a Master. It is a process that can fundamentally only be performed between a Master and a Servant with which they summoned and formed a contract. It is said that they, no matter the sort of Master they are, will be unable to withstand the Saint Graph and will start to break down as time progresses. The only way to withstand the process would be if the individual was modified since birth.[1]

Known Demi-ServantsEdit

Demi-Servant Class Possessing Hero War Series
Mash KyrielightShielderGalahadGrand OrderFate/Grand Order
Rin TohsakaLancerCú ChulainnMoon Holy Grail WarFate/EXTRA Last Encore
Rani VIIIBerserkerLü BuMoon Holy Grail WarFate/EXTRA Last Encore
TachieShielderGalahadFifth Holy Grail WarFate/unpublished material

Characters that have similar characteristics to Demi-Servants but have not been officially classified as such.

Vessel Class Possessing Hero War Series
Shirou EmiyaArcherEMIYAFifth Holy Grail WarFate/stay night: Heaven's Feel
SiegSaber/BerserkerSiegfried/FrankensteinGreat Holy Grail WarFate/Apocrypha


Community content is available under CC-BY-SA unless otherwise noted.