Immortality: Starting Life with Sister-in-Law

After passing away from a cold, Li Changsheng transmigrates to the late Qing Dynasty, becoming a sickly teenager who must survive with his sister-in-law, Chen Yuelian. Facing poverty and the loss of their land, he accidentally activates a labor system. By chopping wood and catching fish, he accumulates experience to upgrade his skills, eventually mastering salt and sugar production to improve their living conditions and achieve wealth. Later, after killing bandits to save his sister-in-law and facing retaliation, he takes her on the run. Their relationship transforms from that of uncle and aunt to husband and wife. In the end, Li Changsheng navigates various factions with his wisdom and strength, reaches the peak of martial arts, and achieves immortality.