I Rely on Forbidden Magic to Gain Some Immortality

Jiang Liang traveled to another world and found that he had been poisoned at the beginning. Accidentally awakening the negative effect point-adding system, facing the cruel world, Jiang Liang found his own path. From then on, poison was treated as water and he practiced hard in forbidden arts. The more others practice, the shorter their lifespan becomes, but I rely on forbidden techniques to increase my longevity. Many years later, Jiang Liang discovered that his lifespan was endless and his martial arts skills were unrivaled.