Mein geheimer Ehemann

He is an orphan scorned by everyone. Just when he thinks he will spend his entire life like this, he unexpectedly crosses paths with the "swan" he have once secretly admired, and becomes the useless husband who lives off his wife. However, when someone suddenly appears before him and reveals that he is the heir to a hundreds of millions assets, what transformations will occur in his life? And how will he get along with his wife?