After dying at the hands of the Sage Emperor, Nie Li wakes up back in his thirteen year old body. Given a second chance to save his loved ones, he is determined to stop Sacred Family from betraying Glory City, and causing the attack that not only destroyed his home but killed all his friends and family.

Nie Li is a member of the Heavenly Marks Family, a declining and weak aristocratic family. His initial talent is considered by others to be poor and is lacking in culture and social position. However, he retains all the knowledge he gathered while roaming the Divine Continent in his past life. Using that, he plans to cultivate himself to far greater heights in this life.[25] He also gathers allies who protected Glory City in his previous life. With his massive amount of knowledge, he helps his friends and family become stronger so that they can have a better chance at survival. These include: his best friends Du Ze and Lu Piao; Du Ze's followers Zhang Ming, Zhu Xiangjun, and Wei Nan; his past love Ye Ziyun; and Xiao Ning'er.

(Source: Yao Shen Ji Wiki)