"We've found these stars once again."
"You promised that when their afterglow falls to earth again, you would stop that beam of light for me."
The Emperor's loyal and radiant sons "conquered" an extraordinary planet during the Great Crusade. A thick stellar pod, formed from a strange black stone, encased the entire planet.
The Astartes used orbital cannons to blast their way through the pod and reach a planet whose technology seemed to be extremely primitive.
There, inside a pitch-black sarcophagus, they encountered a "Doctor."
The Golden Age they speak of feels so far away that we can't help making fun of ourselves. Perhaps we are children abandoned by the stars. We, with nothing and no one, wander alone through the darkness of this galaxy, stubbornly discussing love and ideals.
And we all know what happened afterward.
"I'll cross the sea of stars in your eyes"
"I'll come to you across the vast light-years of interstellar space"
"When we meet and become one, a supernova will melt us and we will be reborn"
"When the myriad stars and the singularity meet, we will awaken in the light"
1. The worldbuilding of ZZZ is folded into Warhammer. The Doctor is the central character, with no CP, but there will be many characters from ZZZ who have one-sided feelings for the Doctor, like the person at the start of the synopsis. They're all dead wives (this is important). All for the Doctor.
2. The Doctor is very kind to everyone, but there won't be any romance. Most of the story focuses on the Doctor and characters from Warhammer. The Doctor and the others from the Institute are travelers who wandered the galaxy during the Age of Strife (late 20th millennium). The Golden Age was already mostly over when they were born. They have a little of its technology and knowledge, but not much.
3. Basically, the Doctor's one-sided "dead wives" from ZZZ will have their tangled relationships play out in front of everyone from Warhammer. After leaving the ZZZ planet, they'll also discuss the Emperor's family drama a little, as well as how to save humanity. No more dying before your time: the Emperor and his Primarchs will be one big happy family, though major characters will still die.
4. Read the tags and decide for yourself. This isn't a power fantasy. There are tons of original settings, and it will probably include mature content and some plot holes.
Theme: Your Terra and my Terra don't seem to be the same~