The genius pianist 'Baek Tae-se', known as the second Beethoven. His artistic world, which seemed immune to frustration, is shaken by a severe slump. In front of 'Tae-se', 'Kang Seol-ah' appears and breathes new inspiration and emotions into him. 'Tae-se' demands a physical relationship with 'Seol-ah' in exchange for paying off her debt of 215 million won... "10 million won." "For every time we sleep together, I'll deduct 10 million won from your debt." I don't know what drives me crazy, But you are mine, Kang Seol-ah.