Her full name is Anastasia Nikolaevna Romanova, the daughter of Nikolay II, the last Tsar of the Russian Empire. During the Russian Lostbelt, she is the Caster-class Servant summoned as Kadoc Zemlupus's partner.
She carries a doll named Viy, which manifests as a shadow monster in her third ascension and when using her Noble Phantasm.
