Cultivation in the Wasteland? Then I Will Cultivate the Power Armor Immortal

Wu Yan originally thought that his family would always be in harmony, but it wasn't until conflicts arose that he realized that he was too naive. At the same time, the door of the shelter that had not been opened for hundreds of years was actually opened. Outside the door was a group of weirdos, and pistols were useless against them. These people were still shouting about fairy boys and immortals. But then his only family member was taken away, and Wu Yan embarked on a journey to the wasteland to find his family and become stronger.