The Green Bird Returns Home in the Past Joyful Memory

She is a little blue bird next to the Demon King, without a father or mother, ignorant and timid... He is the most powerful king in the history of the demon world. He is cold and cold-hearted, but he cares for her... She is just a little lonely bird, how dare she covet the supreme monarch... With his fiancée by his side, how could he let go of hundreds of years of heartache... However, love doesn't know where it started, but it goes deeper... When romance is in love, we always miss each other...