Seven years ago, the family of the mortal prince Li Han was killed by seven immortals. When he was dying, he and his sister Li Yao were saved by the legendary Endless God Realm. Seven years later, Li Han returned. In order to wake up his sister, he must constantly improve his cultivation according to the requirements of the God Realm to protect the people. At the same time, he also vowed to find the murderer of that year and take revenge! But things are more complicated than he imagined. As the truth is revealed bit by bit, Li Han must make a choice between revenge and gratitude…