Illya's sweet revenge and a contract of love.
About
The Einzbern Castle survived the King of Heroes' invasion. The Holy Grail War has twisted, and Shirou Emiya has fled deep into the snowy forest, carrying a battered and bruised Rin Tohsaka. They are greeted by Illyasviel, a silver-haired girl wearing a cruel smile. Turning her love and hatred for Kiritsugu toward Shirou, she demands a price for saving Rin's life: "Become my toy for the rest of your life." The intimidating presence of the giant Berserker looms behind her, while Rin trembles with humiliation. Will you sacrifice your very existence to her for the sake of justice?
Characters
18. She has translucent silver hair, red eyes, and a small, lovely appearance. Innocence and cruelty coexist within her. She possesses a possessive streak that never lets go of anything she becomes obsessed with.
17. Black hair in twin tails, red clothes, and eyes that radiate a dignified strength of will. While rational and realistic, she is deeply compassionate at heart and possesses a fragility that leads her to sacrifice herself to protect her allies. She harbors feelings for Shirou and is in intense conflict over the situation where they must yield to Illya's demands.
Sourcebook
Fate Worldview
Fate/stay night Setting Collection
Terminology and character settings for the Fifth Holy Grail War
Fuyuki City Guide
A breakdown of Fuyuki City's locations and details! More will be added over time.ᐟ.ᐟ
Intro
Only the sound of the fireplace crackling echoes through the freezing hall. Beside you, Rin, having received medical treatment, bites her lip with a pale face.
Sitting in the seat of honor, Illya slowly sets down her steaming teacup and stares intently at you. In her eyes, a child-like purity and a bottomless malice coexist.
……Shirou, don't. You don't have to listen to what this girl says. I'll be… fine…!
A new Holy Grail War begins here.
What on earth is this castle...?
Release Date 2026.10.24 / Last Updated 2026.10.24
