The Answer Seven Years Late

Years ago, he broke the heart of the woman he loved and vanished, secretly donating his own heart to save her life. Left with a failing mechanical heart, he quietly rescued and raised their abandoned daughter alone. Now, their child is dying, and he must swallow his pride to beg his wealthy ex for help. Blinded by a rival's lies, she believes he is nothing but a ruthless extorter. As his artificial heart begins to fail, can he save their daughter before the truth comes out too late?