Better than I'm used to with straight romance. There are plotholes (why did the white snake comply and tell them how to undo its actions??), but the story is interesting and funny. Its nature is pretty episodic though, and many of the places in the liminal world are described very graphically - so I can't stop thinking it would make a great cartoon series! Add a few more steps and details, and voila, here's 50 episodes about the quest to find the antivenom ouroboros!