Tian, god of plants, 13th son of minor deites of grass and waves, has a lot to prove in the modern world, where gods and mortals coexist. The only thing setting him apart is his one duty: guarding the map to Icelion. And then the goddess of chaos steals it. Thrown onto a chaotic journey where his only ally is a book-loving thief, Tian begins to learn of the world outside his duty and godly status.