Alter Ego (Fate/Grand Order - Sitonai)

Alter Ego (アルターエゴ) is an Alter Ego-class Servant appearing in the Lostbelts of Fate/Grand Order.

Identity
Alter Ego's True Name is Sitonai (シトナイ), a Pseudo-Servant in the body of Illyasviel von Einzbern, containing Sitonai of Ainu mythology, Louhi of Finnish mythology, and Freya of Norse mythology.