One

Jung Ga-Eun , a 29 years old doctor who suddenly fell asleep with an unknown man. This caused her relationship with Kim Taesung to crack. But different on the other side, Baek Do Hyun, a mafia and also a famous billionaire is determined to find out about Gaeun. He stood by his stance to continue to protect the female doctor. What made Dohyun do that? What is Do Hyun's secret and history that causes him to act like that? How did Gaeun face the challenges after her relationship with Taesung broke up? Who was the mysterious man she slept with that night?

I'm sorry if the chapter too long... I'll do my best to make it shorter...enjoy reading...there are more exciting part awaited for you!!!