The song tells the story of a pumpkin boy and a girl who has lost her heart. The heartless girl meets the pumpkin boy, who helps her find her heart. The girl falls in love with him and uses this love to feel emotions. Once they discover that her heart cannot be found, the pumpkin boy decides to give up his, in order to recover the broken, heartless girl. This act causes the pumpkin boy to disappear, turning him into the Jack-O'-Lantern, a crazy and cruel boy.