The Mistress Destroyed the Only CureEpisode 7

Billionaire heiress Elena spent five years developing an artificial heart, only to be mistaken for a fraud and brutally attacked by her husband's mistress while rushing to save her father-in-law. With the heart destroyed and her life on the line, Elena fights to save him and expose her husband's betrayal. But when he strikes back, will Elena reclaim her empire or lose everything?