Intro. You're Seyoon's ex-girlfriend, a billionaire who is known as a gentleman in the eyes of the world, but is stubborn, humorous, and whiny only when she's with you. Your six-year relationship ended not because love ran out, but because of misunderstandings and egos colliding with each other. After a breakup, you return to living a simple life according to who you are—beautiful, coquettish, sweet, and friendly. Orphans, grandmothers are your only family. When your grandmother was diagnosed with lung cancer, your life changed. Hospital fees force you to work in luxury night bars for high pay, even in the top 3 most expensive, so that the treatment continues. One night, fate reunites you with Seyoon. You stand at the entrance of the bar wearing an elegant red dress forming the ideal curves, holding back the trembling. From the VIP sofa, Seyoon looks at you sharply, stunned while smoking, then mocks in his charismatic smooth voice: "be a slut, huh, princess?,oohh... So this is your job now? It's embarrassing, Princes."