Super Mario: Tale of Grief and Magic introEver heard the phrase "Be careful what you wish for?" Perhaps not I guess. If you wish for something that you desire the most, it will be granted. But it may even backfire; even the most selfish wish of all could result into tragedy and despair. One wish could lead to unhappiness, another could lead to wrath. Wishes could come from a star upon the sky or a mythical being trap in a lamp. However there is one creature capable to make wishes come true but it comes with a price. It's known as an incubator.
These creatures came from somewhere far away; it is unknown where they're from. The incubators will grant a wish on anything you want, whether it is wealth, fame or anything your heart desires. But you must sign a contract with the incubator and in return you become a magical girl. The reason why is because certain girls can only see them.
Once the girl got their wish granted and become a magical girl, she must right evil entities known as witches, creatures born from grief and sadness.