Doomsday Xiaoyao Immortal Emperor

The Immortal Emperor from another world was reborn as a high school boy, but he didn't expect that the world would end. Fortunately, he discovered by chance, His natal artifact "Demon God Cauldron" can actually travel through time and space and return to the original Nine Heavens Mysterious Realm. As a result, Su Yan began to shuttle between two realms: on one side, he collected resources and tempered his body in the doomsday world; on the other side, he looked for opportunities in the Nine Heavens Mysterious Realm to break through his own bottleneck. So what if the Five Elements are useless? Immortal Emperor Su Yan can still change his destiny again and return to the top!