There is something covering the sun, it is a huge tower that connects the Hell of the Blazing Flames underground and intends to reach Heaven. Flying around the tower, there is... Utsuho?

"As your sun god, you better start worshiping me. Praising me. Fearing me. With this worship, I shall return to heaven."

It's not Okuu, she has the same clothes, hair and wings as her. But she has black sclera, thick eyebrows and two bird legs and one bird arm instead of her normal limbs