The Billoniare's Comeback

Steven is the only child and heir to the wealth of the Walton family.
An unfortunate road accident makes him lose his memory.
Therefore, with no knowledge of his prior identity, he falls in love and marries Amanda, who was a receptionist and as poor as Steven then.
He helps her to rise to the position of the secretary of the CEO, putting her interests before his. But what does he get in return; betrayal, heartbreak, insults, scorn, and most of all; "A divorce letter"
As Steven's world comes crashing down, An unexpected turn of events occurs; "The Young Master has been found".
Fully recovered, he is ready to take his revenge. However, Steven can't answer why he is troubled by Amanda's younger sister's strange behaviour