Project D: Magical girl despair

Long ago, in a forest a tree that would grant you any wish was standing. but as compensation you had to give it. The despair hidden deep down inside your heart. That despair would turn into ashes. That trees was the refuse of fairies that would care of it.

Over time the leaf of the trees were covered in ashes and soon enough the whole forest was... the ahs of the despair start taking form and coming to life. These new corrupted life became a danger for the world. To protect the world the fairies, gifted power to those with pure heart tainted by despair but never gave up despite it. They were called the fata del riparo.

Those warriors with the help of the fairies fought against the ashes of despair. But the despair once sealed away started awakening again. Would the warriors manage to save the world from the ashes? Or would the greed drive them to the end?