The male radio presenter Dong-hyun and the female TV home shopping phone operator Soo-hyun are both lonely. While Dong-hyun is focused on getting back to his ex-girl-friend Young-hae who has sent him a special LP, Soo-hyun is crazy for her friend's boy-friend. Via Internet and music Soo-hyun and Dong-hyun get together in a special way.

A true historical drama about King Sejong, the greatest ruler in Joseon history who sought to enhance national prosperity and military power through astronomy, and Jang Yeong-sil, the most remarkable scientist.