Stream anime episodes online for free, Watch The Law of Ueki Episode 13 English version online and free episodes. Anime Episode guide, Chapter The Law of Ueki Episode 13 English dubbed The Law of the Celestial Beast Just when Ueki and Alessio’s fight gets started, a large fox-like beast, later given the name Tenko, erupts from the ground. Apparently it’s a heavenly creature that was in search of Ueki in order to eat him. Upon meeting Ueki, though, the monster is unimpressed. The kid hasn’t even awaken any of his sacred weapons. Yet Ueki lives to do the impossible and manages to not only gain one, but two of sacred weapons within a short time. The celestial beast seems impressed by this and agrees to help our hero despite his hatred for the celestials that have treated him so poorly.