It was five years ago when Jaejoong left Yunho in despair. The cold mafia leader was once a happy man. When Jaejoong left to manage his family's business, Yunho attempted to kill himself but failed when he heard the loud cry of of their son.

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Seoul (Present time)

My name is Jung Yunho, 35, the most powerful mafia across Asia. No one dares to disobey me. If you plan to do so, please prepare your grave in advance. I have a son. He's six years old. He's cute. No one can touch him except me and his nanny. He's my only family. Where's his mom? She already passed away. My son is not my biological son. His mom was my sister. My sister and her husband passed away because of an accident. Me and my lover decided to register him as our son. Where's my lover? He left me and our son 5 years ago. I don't want my son to follow my path. I want him to be happy. I want him to live life with no regrets. I don't want him to be like me. I have so many regrets in life that includes letting my lover walked away from me. I didn't fight for our love. Maybe I did but why did he leave?

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Busan (Present time)

I'm Jung Jaejoong----nope. Scratch that. I'm not using that family name anymore. I'm Kim Jaejoong, 32, the son of a well-known tycoon. I'm the only heir so I have no choice but to take over our family's business. My f