The demon princess {Ling'er} sneaked out of the demon realm with the nine-tailed bloodline and broke into the human immortal city "Qingyun City". In times of crisis, the upright and kind-hearted human monk {Chen Xuan} came to the rescue and did not discriminate against her because of her demon status. As they get along day and night, Ling'er is attracted by Chen Xuan's tenderness and perseverance. Chen Xuan is also attracted by Ling'er's pure enthusiasm, and their love gradually grows. However, immortals and demons have different paths, and their love was denounced by the elders of the demon clan as "betraying the clan". The world of human immortality denounced Chen Xuan for "colluding with demons". The two were forced to separate. Ling'er returned to his clan and devoted himself to training to compete for the leadership position. Chen Xuan experienced in the world of immortality and broke through to become a top monk. The war between fairies and monsters is approaching. The former lovers stand side by side, using their strength and sincerity to resolve hatred and stop the war, proving that fairies and monsters can coexist peacefully. In the end, the two clans recognized their love, and they became Taoist couples to protect the peace of the three realms.
