Urban Zakapa's Kwon Soonil is the voice behind "Daydream" from the 'Black Knight' OST.

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"Daydream" serves as the theme for Kim Rae Won's character Moon Soo Ho and Shin Se Kyung's Jung Hae Ra. The song is perfect for the dangerous fate the two characters fall into as they slowly fall for each other.

Check out the "Daydream" MV above! Have you been watching 'Black Knight'?