Syll'Esske
Who says daemons can’t find love?
Once there was a Herald of Slaanesh called Syll Lewdtongue (yes, that’s really her name). She did the usual Slaanesh gig of inspiring mortals to grandiose acts of depravity and indulgence, however what separated her from her kin was her tendency to grow emotionally attached to her chosen recipient, which earned her the ridicule of fellow Heralds. She ignored these jeers and eventually she found a new champion that would change her life forever.
Esske was a proud warrior-slave native to the gladiator pits of Slaanesh’s gardens. He proved to be a perfect host for Syll’s blessings, causing him to skyrocket in the arena’s leaderboard, eventually becoming a full fledged daemon prince. Unfortunately, even after his ascension to daemonhood, he was still treated with disdain for being a “mere-mortal” rather than a pure child of Slaanesh. Syll found kinship in Esske and the two made the ultimate decision; standing in front of the throne of Slaanesh, the two made an unbreakable vow to always fight at each other’s side in perfect synchronized harmony. They had become Syll'Esske, the Vengeful Allegiance.