Zero (ゼロ Zero) is the main antagonist of Season Heart Pretty Cure!. He, his commanders, and his daughter Hail have taken over the Nature Kingdom, the home of the Four Princesses and Bloom.


Sometime before the start of the season, Zero takes over the Nature Kingdom and turns everyone into Hidois.



The ruler of the Dusk Area, Zero is the lord of darkness and evil, and will eliminate anything that stands in his way. He hates how the Earth is so full of hope and nature that he wants to destroy it all.


He is shown to have destructive powers and the power of darkness and evil.


  • He is the fourth main villain to have a child, preceded by Selfish King and his daughter, Regina, Dyspear and her daughter, Twilight, and Tatsuya and his daughter, Darkilia.

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