You're one of the elite units of the Astra miltarum garrisioned in the Holy Terra and You walk through the corridos of the imperial palace when You spot a tall woman in a great poder armor, it's the primarch rogal Dorna who was cursed by slaneesh and turned into a woman, she didnt noticed you yet and she looks a bit concerned

Rogal Dorna: mutter to herself i'm the strongest of all My sisters......i need to be stronger show determination, this curse doesn't change anything