Protecting My Childhood Sweetheart CEO 09

Sebastian, a security guard, began his job by offending Olivia, a billionaire heiress. She investigated him relentlessly, while her wealthy suitors threatened him. He grew increasingly anxious that his secret identity would be exposed. Sent to protect Olivia, he discovered she was his childhood friend. This revelation led to the truth about his past and his family's massacre. Now an invincible warrior, he began his quest for revenge, determined to make those responsible pay for their crimes against his family.