Season Fairies create and control the weather using special musical instruments. They make the wind blow, the snow fall, the sun shine; if it's something weather related, they are the ones who make it happen. Sugar, an apprentice Snow Fairy, and her friends Salt and Pepper, all want to become full-fledged Season Fairies, and the only way to achieve this is to search for and find the "Twinkles" that will make their magical flowers bloom. The only problem is that none of them have any idea what a Twinkle is. They enlist the somewhat unwilling help of Saga, a human girl who can see Season Fairies. Much to her annoyance, Saga's perfectly planned and ordered life has just become a little too lively for her taste. Together, they search for the mysterious Twinkles while trying to perfect their magic.
Preparing for the battles to come, tournaments and to fight against new opponents from over the world, Hakufu is working to have enough money to make her dream true. But she doesn't consider that old and new allies and enemies will come to scene, and also being a weak leader to the eyes of her companions. A sister also appears. She doesn't even know her mom's past so better to start from the local stuff before attempting to go worldwide.
The main fighters are summoned to a tournament that involves the heads of all the schools. But some of the heads send their trust fighters in their place. They don't realize that the tournament is just the face of a conspiracy to take over the clans. Hakufu now has a disciple as crazy and skilled as her and due to her laziness the disciple ends on the tournament in the place of her master. Now they must prove that the destiny imposed by the souls of the fighters living in their own is not always an absolute law.
In the city of Gainos, Reina the vagrant warrior enters the competition of Queen's Blade to decide the new queen of the continent, but there are a number of obstacles in her way, each with their own reason for fighting.
In four years' time the competition that will decide who the next Queen shall be will start. The strongest warrior will continue to rule the country according to tradition and expand it. The contestants need only be older than 12 years. They need not be human, intelligent or even of that country. The rules for the tournament are simple: murder is allowed. Any weapon can be chosen. The winner is decided when one of the participants flees or can't move anymore. The event is broadcast by the court's magic teacher through a crystal sphere to the whole population to see and enjoy.