Board Thread:General Discussion/@comment-6192846-20140918010005/@comment-6192846-20141228234336

Quoting our translation of Heavenly Yard:

Maybe they became angry being one with the one they hated, or just hated becoming an ugly dragon.

Whatever the case may be, they complained about their treatment, yet they went around breaking one thing after another in the world about to be made and, reluctantly, Sickle dropped[...]

Emphasis on the "maybe" and the "complained about their treatment". Both stories cover the same thing: Levia and Behemo are turne dinto the two-headed dragon Levia-Behemo and afterward start trying to destroy the new world about to be born.

Heavenly Yard provides suggestions, character-inferring suggestions, about why these twin gods ended up rampaging. Now we have the added reasoning that Sickle turned them into a dragon in the first place because they disapproved of his decision to leave the world to the humans and just observe.

No contradiction that I see there.

The story specifically says they became a two-headed dragon as a result of their quarrel. Presumably, Sickle must've been resilent to their dissent and so forced the duty of being "temporary gods" upon them, expecting they would go along with it. It didn't work and Sickle ended up sealing them all in Sin, then had Held incarnate in the forest he made to watch over everything while Sickle went on as a bat to observe it all.