My Poor Ex-wife Is a Heiress Episode 1

Crystal Brown, a billionaire's daughter, marries Charles Wade to repay a life-saving debt, hiding her identity. For three years, she silently keeps the Wade family afloat, only to face betrayal and humiliation. Disillusioned, she returns to the Brown family as their formidable heiress. Will those who once scorned her take notice, and will Charles regret how he treated his wife?