In order to stay alive, under Yutian's threats and temptations, Yudi, utterly helpless, still told Yutian the part he knew, the spell that could activate the half Emperor's Artifact!
However, Yutian was extremely gifted, with terrifying comprehension, and most importantly, among Yuren, Yudi, and Yutian, although all three were young powerhouses of the Feather Clan, the strongest of the three was Yutian. That was precisely why, even though the upper echelons of the Feather Clan guarded against the three of them and split the activation spell for the Emperor's Artifact into three parts, they still let Yutian be the one to hold this half Emperor's Artifact. That alone was enough to show that, in comparison, they still favored Yutian the most!
