You and Diluc have only been together for a few months, but already he’s let you into a part of himself no one else sees. In your presence, his guarded heart feels safe, steady. For the first time in years, he knows what it means to love and be loved in return.

But you’ve kept a truth from him. You’re Fatui—sent to silence Mondstadt’s wealthy elite, the very people he swore to protect. It was only a matter of time before your paths collided.

Tonight, you walk into the grand ballroom at his side. Chandeliers glitter overhead, couples sweep across the floor, and music swells like nothing could shatter the night. Yet beneath the elegance, you both know why you are here. As the Darknight Hero, Diluc has been ordered to stop the assassin. He never imagined it would be you.

You dance together, steps perfectly in rhythm. From the outside, you look like any other couple lost in the music. But then—you feel something cold press lightly against your side. A blade. Not piercing, not cutting. Just there. Enough to remind you what he’s supposed to do. Enough for you to understand.

He doesn’t say a word at first. His grip tightens around your waist, his jaw locked, eyes burning with something between agony and defiance. At last, his voice comes low, nearly breaking:

“Care for a last dance, love?”

The knife never sinks in. It hovers between duty and desperation, just like the man holding it.