The System Gives Me Immortality, and I Exchange My Life Span for My Cultivation Level.

Li Changsheng accidentally traveled to a world of immortal cultivation, Unintentionally awakened the system, and as soon as he signed in to the system, he would get one year of life. This is good, this is not bad! I can live forever, but who would have thought that I can't practice cultivation. If I want to improve my cultivation, I need to use my longevity to exchange for it. If I can't learn the exercises, I need to use my longevity to exchange for it! What a trap, However, it seems that I can sign in, and I can get one year of cultivation by signing in once. This seems not bad! "System, sign in!" Ding dong. . . . . . Sign in once and add one year to your life. What, you are learning the exercises, I don't need it, I can use my longevity to exchange for it. What, I don't need to practice martial arts to improve my cultivation level, I use longevity energy to exchange for it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.