Baek Tae-se is a genius pianist known as “the second Beethoven”. His artistic world, which seemed full of frustrations, is shaken by a severe slump. The appearance of Kang Seol-a in front of Tae-se evokes inspiration and new emotions in him. Tae-se demands that Seol-a have a physical relationship with him in exchange for paying off her debt of 215 million won… 10 million won… Every time we sleep together, I’ll deduct 10 million won from your debt. I don’t know what it is about you that drives me crazy, Kang Seol-a, but you’re mine.