The little lion king guard didn't come back from the tree of life. According to relevant public information, the lion king guard often needs to stop to let Kai 'an recover when looking for the tree of life. Kaian was finally cured in the tree of life. After recovery, Kaian fell in love with Rani, the new queen of the Tree of Life. At the invitation of Rani, Kaio decided to manage the tree of life with Rani and become the king of the tree of life. To sum up, the little lion king guard never came back from the tree of life.