Yuju is the voice behind "My Whole World is You" for 'The Story of Park's Marriage Contract' OST.

The music video features Yuju in the studio as she records the lovely track. "My Whole World is You" is the theme song for Park Yeon Woo (played by Lee Se Young) and Kang Tae Ha (Bae In Hyuk) as they fall for each other, and it's about feelings like the whole world is covered by the one you love.

Listen to Yuju's "My Whole World is You" above, and let us know what you think in the comments below.