Bound by Secrets: Her Billionaire Doctor

After five years apart, Luna has raised Neo alone. When he is diagnosed with leukemia and urgently needs a bone marrow transplant, her search for help leads her back to Ken, her former boyfriend. Now a chief orthopedic surgeon, Ken is part of a life Luna no longer recognizes, so she hides their shared history while agreeing to an arrangement with him for Neo’s sake. Their reunion is complicated by Alan, whose earlier cruelty forced Luna into a devastating choice, and Tina, Ken’s fiancée. As pressure builds, Luna must protect Neo without exposing the truth about their family. Ken is caught between his present commitment and unresolved feelings, while schemes around them threaten to deepen the damage. Can trust survive when old wounds, hidden ties, and conflicting loyalties collide?