Cultivation Starts from Time Traveling

The protagonist's name is Chen Xi. He was overjoyed when he first traveled to the world of cultivation, but what he didn't expect was that there were nine more people who traveled with him. So the protagonist became a disciple of the master, but got a cheap deal with the demon emperor sister. After awakening, the demon emperor sister wanted to launch a war to destroy the world. In order to stop the senior sister, the protagonist accidentally opened the ghost world, the entrance to the demon world... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.