Long ago in the very distant past, it is said that civilization had developed to high degrees, and its people spent peaceful and plentiful days without an inconvenience. The people thought their peaceful and tranquil lives would continue forever. But on that day, when the 「stars」 fell from the skies, legends say that all civilizations on earth announced the end and perished in an instant. However, the stars that fell on 「that day」 did not merely bring about destruction to earth. In the flowing long months and days, the mysterious powers possessed by the stars gave a new potential to people. That possibility was a 「new mankind」 who were gifted with power from the stars. From the day the new population became aware of the mysterious power attained from the stars, research started on the usage of the 「power」. This signaled the raising of the curtain of the era of a new civilization led by the 「power of the stars」, Meteo Civilization. The power of the stars that surpasses mankind and transcends everything… people call this new star 「Nova」.

There is a competition for those who possess the spirit weapons. Only someone with one of these weapons can defeat another. Enter our protagonist, a clumsy flower girl who one day embarrasses a weapon master… What is our flower girl going to do? What is the purpose of this competition?