He is the noble sweetheart of heaven; she is the down-and-out mysterious beauty. A transaction four years ago had passed, but they met again in the dark. It's affectionate, it's ruthless, it's sentimental, it's long-lasting love... I leave and meet again, is it always you in the dark?
Concept: Love is not everything in life, but it requires us to seriously face the truest desire in our hearts.