Teddy Bear started as a beloved ordinary plush toy. Neglected and abandoned as his owner grew older, profound sadness and bitterness consumed him. He relocated to the Land of Toys, where resentment towards children for discarding toys like him festered. This transformed him into Toymajin—a powerful entity formed from countless fused, abandoned toys. As Toymajin, he sought revenge by stealing children's toys worldwide, aiming to dominate both the Land of Toys and the human world to end abandonment. His body physically manifested the collective anguish of every discarded toy absorbed into him, their voices expressing shared despair and anger.
Toymajin confronted the protagonists after Usapyon, a stuffed rabbit once owned by Cure Peach, alerted them. He challenged them with a treacherous board game, transporting each to isolated battle zones upon landing on spaces. Despite initial advantages and resistance to their attacks, he absorbed Usapyon to grow stronger. During the fight, Cure Peach recognized Usapyon within him, intensifying her resolve. Toymajin justified his crusade by condemning children's fickleness, citing his own abandonment as emblematic of widespread betrayal. The protagonists' attacks proved ineffective until Cure Angel, empowered by an upgraded transformation, unleashed the Loving True Heart attack. This purified Toymajin, dismantling his composite form and reverting him to his original teddy bear state.
Purified, the teddy bear lost all memories of being Toymajin. The protagonists gave him to a young girl at a flea market, ensuring new love and care. This act symbolized his redemption and reintegration into a cycle of affection.