Seven years ago, the mortal Crown Prince Li Han's family was slaughtered by seven immortals. On the brink of death, he and his sister Li Yao were rescued by the legendary "Endless God Realm". Now, seven years later, Li Han returns. To awaken his sister, he must continually cultivate his powers as required by the God Realm to protect all living beings. At the same time, he vows to find the culprits from that fateful day and avenge his family. However, things are far more complicated than he imagined. As the truth slowly unfolds, Li Han must choose between seeking revenge and repaying kindness.