In the dark alley she stood, taking in her surrounds before deciding to move on. She came to this location looking for something, or looking for someone. She kept a low profile and didn’t converse with the locals unless she had to. The name she gave when needed was always a fictitious one, leaving as little of trail as she could. Invisible is how she needed to be.
Although the day was dreary and gray, she sat inside the cafe staring out the window, watching the people walk up and down the streets. What seemed so complacent was soon going to turn into an event of chaos that she was unaware of. She had a few errands to run and was taking a moment in the cafe. As she watched the people outside, she noticed something odd in the distance. The skies that filled were darker, and although on a dreary day that isn’t so unusual, but these clouds were different, didn’t seem match with the rest of the sky. This puzzled her as she stared out and now focused on those clouds.
Slaanesh is the Chaos God of lust, excess, pleasure, perfection and hedonism
The name Slaanesh derives from Slaaneth - the god's name in the language of Chaos, (Slaa meaning "ecstasy", "pleasure", etc, Neth meaning "lord of", "master of", or "prince of"; hence, the Prince of Pleasure).