He is the ruthless CEO Omulang. He lost his beloved three years ago and was heartbroken. His grandmother forced him to get married to avenge his grandson. But he had no choice but to adopt a ten-year-old girl with amnesia in an orphanage. However, it changed his life. Watching her grow up day by day, his heart slowly woke up. But he didn't know that his "daughter" fell in love with him first. Just when he was about to abandon moral opinions and be with her, his dead first love girlfriend actually appeared! His girlfriend's "daughter", when he finally looked into his heart, he found that she was actually the daughter of the enemy who killed his parents...