The story takes the love between butterfly spirit Butterfly and mortals as the main line, depicting a grand world where the immortal, mortal and demonic realms are intertwined. In this world, love between immortals and mortals is considered taboo, but Butterfly and Fan Shengci meet, know and fall in love under the arrangement of fate. Their road to love is full of difficulties and obstacles. Not only do they have to face numerous pursuits from the fairy world, but they also have to resist the conspiracy and calculations of the devil. But the two always stuck to each other, fighting against all obstacles with love and courage, setting off a magnificent legend in the Three Realms.
