Crossing the Type-moon: I, Black Rock, am Actually a Beast's Larva?

[Story: F/Z → Mystic Eyes Collection Train → F/SN → FGO Special: Burning Fuyuki → FGO Seventh Singularity]

[Main Character: Black Rock Shooter, not invincible but not defeated]

She travels to the Type-Moon world and becomes Black Rock Shooter, hoping that she will no longer participate in the Holy Grail War without accomplishing anything in this life.

Why is this golden-haired guy so interested in me?

Huh? I am human evil?

Are you kidding me?