Junior Sister, Stop Being Involved, I'm Already Invincible.

Lu Li traveled through time and became a useless senior brother at Lingxiao Peak in the world of immortality. He awakened the "Senior Senior Brother Development System" and bound his junior brothers and sisters to get cash back for their cultivation. His PUA junior sister practiced hard and deceived the reincarnated empress and others into joining the gang. Her cultivation level increased greatly, but she offended Tianji Peak, causing the other peak leader to collude with the Yin Demon Sect to break the seal, which led to a crisis for the Half-Step Emperor Demon Lord. Lu Li proposed that the whole sect worship at Lingxiao Peak, bind all the disciples of the sect to get trillions of cash back, and advance to the realm of the Great Emperor in one fell swoop. In the end, in order to seal the demon king who wanted to self-destruct, he spent his entire life cultivating himself to create an independent space to seal him. After that, he returned to peace and continued his life of accepting disciples.