The Yanxi tree in the sky has only six relatives, and is destined to be lonely and helpless for the rest of its life. There is a southern bird, which has been flying non-stop since leaving its nest. One day, he was about to die of thirst and fell on the branch of Yanxi. Yanxi cut the trunk and drank his own blood for him. In order to repay his kindness, he stopped flying and vowed to be with Yanxi for the rest of his life. After Yan Xi was reincarnated, in order to preserve his memory and save Yan Xi from loneliness, he slept for the rest of his life, waiting for Yan Xi to wake up.
Purpose: Mutual redemption