Xiao Shou is a thousand-year-old snake demon, Xiao Gong is the god of war in the heavens. When they first met, Xiao Shou was a demon and Xiao Gong was a mortal. When they met again, Xiao Shou was an immortal and Xiao Gong was a god. In the end, everyone died and started practicing again. That's it. I think the ending is quite happy.