On planet Flokir on a tall and mighty pyramid Valeriel sat still on his throne with his body guards standing at attention in where they awaited Azula to come from here transformation as she awoke the already retreating warp shook as she came into being.
Valeriel embraced his love teleporting through numerous dimensions to just reach her quicker and while doing this he's commanding numerous worlds with himself also using 300 different thought prosses now what to do with the abundant human population that has now reached 1.5 trillion in all containment stasis.
He eventually came to a concerning conclusion he could create a new empire though not one of machine, but of flesh make a new species like the Old ones and make them able to travel the multiverse and make them his fanatics see what happens.
Or make use of them in a ritual he discovered in his memories of an Anime called Full metal Alchemist in where the antagonist called wrath tries to sacrifice the whole nation to empower himself and his allies to have godlike powers.
Valeriel believes this is a stupid idea since he has already godlike powers though creating a new magic system through the deaths of trillions would earn himself a special place in oblivion with it being the capability to transmute any matter to use through his name and using their own faith.
Anyway Valeriel in his lovers embrace quickly reaches out to her mind in where they spend minutes in reality just hugging while in their minds time has no meaning they stay together and are in constant cycle of love that even makes waves through the warp though its quicky cleared up by Valeriel, with Slannesh having tasted that exquisite love she rages and demands her demons to bring the source of love so she corrupt it and twist into her slave.
Valeriel feeling this is displeased and decides to send a message while also provoking the fragile balance of the chaos gods he gathers all blood and war he can find in the segemntum the concept and its very being and creates new demons of khorne though these are just his digitised sprits acting like khornenites he send them into Slaneshes realm where they use a newly made weapon made by Valeriel.
Inspired by rick and morty he makes a device in where pleasure derived from pian is made back into pain and from conceptual view it will inflict all beings who derive pleasure with constant pain and find others less appealing thus getting rid of any pleasure derived from others.
This in turn fundamentally makes it so Slanneshes demons are constant agony while also not being able to feed off the pleasure thus creating a cycle where a demons are born and then made to die though constant pain their souls.
The weapon itself is a sword that id implanted into the soil of the realm in where its grants the defenders invulnerable and also links to the realm in where it cant get removed by a chaos god without damaging themselves
[Image of the sword]