To Live Forever and Cultivate Immortality, I Have a Picture of the World

A map of all realms with magical power, attracting thousands of people from all walks of life, including Xu Wuduan. Sitting in that cramped cave all day long, Xu Wutuan just wanted to get a chance to go home on the verge of life and death. It's hard to send letters to your hometown, but a tired bird knows when to return. What's wrong with that? But when hope is dashed, Xu Wutuan decides to create hope himself! Suppress demons, kill gods, slay demons, destroy immortals... In the end, will the dragon slayer become an evil dragon, or will he rise above the world map? Only immortality can break it!