I love magical-girl anime series. And this anime is one of my favorites, along with Princess Tutu, Kamikaze Kaitou Jeanne, Mermaid Melody Pichi Pichi Pitch, and Sailor Moon. The series is about 16 year old Himeno Awayuki, adjusting to her new life as a millionairess' stepdaughter. But one day, she meet a group of boys known as the seven "Leife Knights". And the knights had chosen Himeno to be a magical heroine known as Princess Pretear to save the world from the Princess of Disaster.
There are parallels I had found from fairy tales in this anime: like Himeno's mother dies when she's very young and her poor, novelist father remarries a wealthy widow with two daughters, just like in "Cinderella". As for parallels from the "Snow White" fairy tale, first: the seven Knights correspond to the seven dwarfs or the seven Knights like in Alexander Puskin's version. The title itself, is a superficial connection, bearing more to the nature of Himeno's growth and role than to the real "Snow White" tale. The kiss at the end, of course, comes from the awakening of the princess by her prince, including Snow White. The other parallel is the Queen and Snow White to Takako/Fenrir and Himeno.
I love Himeno & Hayate and I think they're a cute couple. Overall, I thought this an excellent show to watch - thumbs up all the way!