Why Is the Immortal Supreme a Member of the Demon Sect?

Introduction: In this world, immortality is revered, and those without qualifications will have no bones left. When Lu Jiuyuan worked overtime and stayed up late to contribute, he unfortunately traveled to the world of immortality and was captured as a "two-legged sheep" and went up the mountain. I thought that in the new world, I could use the system to tuck a beautiful lady into bed, but who would have expected that the Immortal Sect is even more magical than the Demon Sect, and can eat people without spitting out their bones. The little junior sister who was cute and delicate one second was turned into a pill by the senior brother the next second, saying that he wanted to turn her into a part of his body and stay together forever. Lucky for Lu Jiuyuan, when he was about to die, he opened an orifice in his palm and awakened the god-level skill of [Wan Zhangsheng]. You can live again after death, but each death will advance the starting point of rebirth. When the time comes to communicate between life and death, can death be avoided?