The First Demon Immortal

In ancient times, outsiders known as Void Spirits invaded the inner realms. The human, demon, and fiend clans sent their Boundary Guardians to fight them, and countless lives were lost. One Boundary Guardian from the demon clan charged into the outer realms alone. When he returned, his personality had changed completely. He killed his fellow cultivators, stole his sect's most precious treasure, and eventually vanished without a trace. Years later, his son, Fang Hao, entered the demon clan's arena with the Demon God Cauldron. He set out to find the answer his father had sought all those years ago.