Himeno Awayuki's life takes a significant turn after her father remarries and she moves into a large mansion with her new stepfamily. Her stepmother and stepsisters, Mawata and Mayune, don't make it easy for her to adjust, but Himeno's life is soon intertwined with the Leafe Knights, a group of seven magical boys who ask her to become their magical princess, the Prétear. As the Prétear, Himeno struggles with self-doubt, feeling uncertain about her ability to protect the Earth and its Leafe, a vital source of energy.