#also i wouldn't be surprised if kenjaku is actually based on ashiya douman

[tempenensis]

What heian period stuff do you think or hope to see gege might incorporate into the story? I can see abe no semei be mentioned and how jujutsu sorcerers were labeled as onmyoji back then

Abe no Seimei was a real person living during Heian era, so if we get crumbs about him, it's probably only mentioned in passing. However, Ashiya Douman, who is always told to be Seimei's rival in stories and lore, was most likely fictitious since his name has only ever appeared in fiction. So having Ashiya Douman appeared later as a character is more possible