Born with a demonic constitution, Mo Tingyun, Lord of Wuyou City, is the sworn enemy of Meng Biechen, the eldest disciple of the leader of the Immortal Alliance and the Sword Heaven Sect, and the shining light of the righteous path. During a duel, Mo Tingyun loses his spiritual power, while Meng Biechen loses both his spiritual power and his memories. Mistaking Mo Tingyun for his wife, Meng Biechen clings to him, while Mo Tingyun is bent on killing him. But the light of the righteous path shining from Meng Biechen is simply too dazzling, and Mo Tingyun keeps failing. Just as he is about to fall for him, Meng Biechen regains his memories, bringing Mo Tingyun's girlish dreams to an abrupt end. In search of new paradisiacal lands, Wuyou City and the righteous Immortal Alliance strike a deal and send their young elite to find the True Dragon Banner, which can summon new paradisiacal lands. Along the way, the group of young people experience countless laughs and tears, and each of them grows. Mo Tingyun and Meng Biechen also learn about their origins. Mo Tingyun is gradually changed, becoming more empathetic and compassionate. Thanks to Meng Biechen and the friends around him, he becomes more resolved to follow his chosen path, and finds both friendship and love.