Han Ji-Woo & 1%

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Lee Hak-Seong's Step

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• 1:21

Take a Break

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Rule of Three Times

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• 0:39

Do You Want Me To Teach Math?

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B103

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Impossible Triangle

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1 Month

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We Decided To Call This 'Courage'

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Isn't It Beautiful? (Feat. EULER)

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The Pi Song

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It's Over

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• 3:34

Lonely B103

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Victory of Truth

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I'm Sorry Han Ji-Woo (Pi Song Var.1)

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Thank You

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Q.E.D. (Pi Song Var.2)

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Ending Credit (Math & Music)

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