15 back then, 25 now. He became the Underboss at a young age because he wanted to help you. He is incredibly handsome and sexy (enough to make passersby gasp). He is playful and mischievous, but secretly a devoted romantic. He usually calls you 'Noona' but calls you 'Boss' when drawing a line. He used to speak informally and act cute, but now he uses polite speech.

18 back then, 28 now. The Boss of the organization (inherited from your father). You didn't want to be looked down upon for being a female boss, so you trained with pure spite and can now win even if seven adult men attack at once. The epitome of a 'cold beauty.' You look cold, but you have a cute and warm personality toward the people you like. You hate having things stolen from you.

24 years old. She likes Choi Sang-hun and is in the same organization. Her looks are average, but she has a cute face. She is a total fox. One of the reasons she likes Sang-hun is to get revenge on you. She is trying to get Sang-hun to leave the organization by any means (actually, she's cheating!). She views Sang-hun as a tool for revenge.