Kaiju Yong You Qi Wei Juese Shijie

When Ye Chen transmigrated to the world of the Tianxuan Continent, he was reborn as the son of the Master Of The Peak in the Sacred Realm. Also in the sect are seven elder disciples, each a beautiful woman who is an expert in her field. Blessed with the super-power of a Sign-In System to boost his cultivation, Ye Chen quickly grows to become the strongest cultivator of the Sacred Realm, and drawing the attention of several sisters. After defending the Sacred Realm against hostile forces who threatened their sect, Ye Chen left the sect to help the sisters on the outside, on his way to become the strongest master in the world.

(Source: Tencent, translated)