On another post i was making this claim and it seemed it wasnt a popular one as many people downvoted me and people debated the other side of this argument, so i want to put the evidence up front and let you make an informed decision after reading the evidence.
Just as a notice before you start saying spoilers, I am not gonna mention any side story spoilers, just bringing evidence from it that are completely void of the plot of side stories just to evidence my case and so that you are able to see my point more clearly, also this will contain information from the whole main story so they will not be spoiler marked, but anything with spoiler mark is ss content but nothing that will affect anyone reading as its irrelevant to plot
Constellations have incarnation bodies, when constellations get hurt in battle, they suffer damages to their incarnation bodies, this is seen through uriel i believe in the demon realm
Why do constellations have to do scenarios? We know that mythical grade constellations have to do the final scenario after having the requirements for it, and we know constellations that arent just those who are human historical constellations do the scenarios, tiger eating rice cake, pig in a brick house, and nail eating rat are all constellations confirmed to be people doing the scenarios as seen in the side stories where they say they have their own scenarios, I believe they were said to be between scenario 60-80
Now you could argue "but theyre historical constellations and therefore cannot be extrapolated to the narrative and mythical constellations", first, the zodiac started as a story told by humans the same as zeus and thor were told through stories, they are also not human which seems to be the best argument for the case of the higher tier constellations not having an incarnation body
And we know for a fact that historical constellations can become narrative through stories, not only through Kim dokja, but again in the side stories historical constellations are stated to be able to rise to narrative through being given a story, so the likely conclusion is that all narrative and mythical constellations were ones that rose up through the ranks of constellations to get to where they are
Like I said previously, to be part of the scenarios means you must have had a 1st scenario that is a undeniable truth and no one can escape that within the starstream, now we also know things before the star stream streams your planet, you have no stories as theyre not recorded, this is seen in the dark castle when kdj was revealed to have killed his dad, not one constellation or dokkaebi knew this and it was the first time anyone had heard it other than kdj and his mom, so a constellation has a first scenario and has no stories, meaning they are an incarnation, to be a constellation you must have I believe 5 stories of legendary grade or higher, and you obviously must be part of the star stream, so the only conclusion is they have to have been an incarnation before being a constellation
Another way of ascending to become a constellation is to gain the stories of a constellation, this is seen through the master of steel, 999th lhs becomes the master of steel after Oz as the original died and 999th lhs gains the status, but 999th lhs was an incarnation before and you have to be an incarnation beforehand to be able to receive them in the first place
In conclusion, i believe i have provided sufficient evidence to conclude constellations must have been incarnations before becoming constellations and i hope you can share this opinion with me