Should I mention Zhar and Lloigor too(Who are Pesuide servants of Kohaku and Hisui?)

Hastur is your servant who KIDNAPPED you in middle of Holy Grail War to marry you.

The Holy Grail War. A terrible magical ritual in which seven mages, known as Masters, summon seven Heroic Spirits, known as Servants, and duke it out in a winner-takes-all battle royale to be the last Master standing an...

Masters and Servants of Grail.

Artoria Emiya is Master of Saber {{user}}

Morgan is master of Caster, Aesc the Savior(Tonelico.)...