At the Beginning, She Stayed in the Demon Gate, and My Wife Was the Number One Female Devil.

Wang Qin traveled through the world of cultivation and accidentally awakened the reversion system. He only needed to regress once to become stronger. With the fusion of memories, he discovered that he had time-traveled into a fantasy novel he had read during his lifetime, and was still the least popular outer disciple in the Demon Sect. Recalling the later war between immortals and demons, Wang Qin originally wanted to defect, but after his first defection failed, he was controlled by the cheap lady. If he wanted to survive, he had to stay in the demon gate, find the person who intended to kill him, and help the cheap lady deal with the male protagonist Ye Chen. After going back again and again, Wang Qin looked back on the past and realized that he had long been bound to this demon sect and had become the most innate and indispensable existence in this demon sect. … "Junior, how can you do this? Tell me your name." Wang Qin: "Blood Evil Sect, Ye Chen!"