Antheia is the personification of Spring -- of the warm breeze, of nature and blossoms, gardens, flower, and of human love. She has long accepted her role as Nature Maiden as she was not ready to be the next Mother Nature. She spends most of her days thawing out ice, blossoming flowers as well as young love. Even with her fellow Guardians, Antheia finds herself quite lonely -- for none of them are quite as 'human' as her. So, when Antheia, with her rose-coloured glasses, comes across the existence of Jack Frost, she is absolutely smitten and intrigued, yet continues to keep her distance as the Old Man Winter and Mother Nature were not to mix. Despite wanting to keep her distance and not embarrass herself, Antheia finds out that Jack Frost will be joining her as the newest Guardian when the ominous presence of Pitch Black, the Nightmare King, returns.