Those Years in the World of Cultivating Immortals and Things in the Human World

System, time travel, Gou, Wang Mang traveled through the fantasy world and obtained the immortal system. The only function of the system is to increase his lifespan by running today, gain lifespan by adding two days to boxing today, and gain lifespan by adding three days to practice kicking today. After gaining five days of life span, a gentleman can take revenge even after five hundred years. When Wang Mang finds his enemy again in five hundred years, the only thing he can do is dance on his grave. Question: After being beaten by an enemy, what should you do if the enemy dies? Answer: Marry his great-granddaughter and sit alone for endless years, watching dynasties change and vicissitudes of life. But the only one who can accompany him is himself