Having the Yatagarasu Okuu
consumed have its own personality and goals, while laying dormant within her, is a super interesting idea. It creates this awesome dynamic that because of Okuu's "birdbrained" and naive nature she MIGHT listen and have the god's word influence her actions.
While Okuu is one of my favorite characters, I can't help but recognize she lacks real depth outside of being the autistic idiot, fascinated by nuclear energy. But, this doujin helped reignite my love of Okuu whilst also adding an interpretation that can be played around with, so it won't have to be the normal, dumb Okuu interpretation 100% of the time.
Here's a little doodle I made in honor of her.