The Jack-in-the-Box was one of many toys that came to life one night, specifically the second on. The first to do so, the Ballerina, caught his interest, and he decides to have her for himself. However, his attempt to woo her failed miserably.
Things got more complicated for him when the Tin Soldier arrived, as his kind personality and his charm won the Ballerina over. Angered, the Jack-in-the-Box confronted the couple and he and the Tin Soldier briefly battled. It didn't take too long until the skirmish was over, though, as a few thrown blocks sent the Tin Soldier out a window and into the sewers, at which point the Ballerina was at the Jack-in-the-Box's mercy.
While the Tin Soldier was busy getting back home to rescue the Ballerina, the Jack-in-the-Box tried once again to win over his would-be girlfriend. Once again, he failed.
On the night that the Tin Soldier returned home, the Ballerina was forced to dance with the Jack-in-the-Box, who was far too rough with her and made her very uncomfortable. An angered Tin Soldier rushed to her side to protect her, and, upon the discovering that the Tin Soldier was the same one from before, the Jack-in-the-Box pulled out a sword, commencing one final battle between the two rivals. The two battled until the Tin Soldier had his back to an opened fireplace, when the Jack-in-the-Box leaped toward him to finish him off. However, he was too strong, and the Jack-in-the-Box was sent falling into the fire below, ending not only his life, but also the reign of terror he had over the Ballerina.
The Jack-in-the-Box is a large toy encased in a brown music box with pink diamond-shaped markings on it. When out of it, he resembles a jester with pointed edges. His head has brown hair and a beard, along with a purple-and-blue-hat with two points, each having a bell at the end. Underneath it, he is bald. His face has a long nose and pink cheeks. His head takes up the majority of his coily body, while his arms are smaller in comparison. He wears a blue collar with golden edges to complete his outfit. Due to the box acting as the lower portion of his body, he can only hop around as mobility.
- In the original story, the Jack-in-the-Box was never present. Instead, a black goblin toy was the antagonist.