Mommy, That Billionaire Is My Daddy!

Five years ago, she was framed by her vicious sister and forced into a one-night stand as a substitute. Five years later, she returns as a Chief Designer with her child for revenge. Unexpectedly, right after getting off the plane, her genius baby clings tightly to the leg of a cold billionaire: "Dad, I finally found you!" Looking at the man who is a carbon copy of her son, she falls into deep thought: Who exactly did she sleep with in that pitch-black room five years ago?