Her Personal Bodyguard

After that incident 13 years ago, she completely changed into a cold person. She blamed her father that day for being a mafia that caused her mother's death. She struggled and lived independently and now 26, she became successful and built her own company. He was there when she was grieving and became her temporary bestfriend until she went to States. When she returned after 13 years, he decided to be the one by her side and protect her. Will she be able to remember him and bring back the relationship they had 10 years ago or it will develop into a "more than bestfriend" relationship? Being a mafia's daughter, her safety is always at risk especially when an unexpected person has been stalking and threatening her life. Will she be able to escape these dangers and will he be able to protect her?