Magical Girl Raising Project: breakdown (魔法少女育成計画 breakdown) is an ongoing web series.
The setting for this arc takes place in The Island.
In the first Monthly Magical Girl Raising Project, Asari Endō made an event that allowed fans to submit their very own Magical Girls to him. To participate, the participant needed to submit their personal information along with the name and ability (as well as other settings, if you prefer, although only name and ability are necessary) of their Magical Girl. Participants whose art were chosen will have their Magical Girls be drawn by Maruino and featured in a special story, which was later revealed as Magical Girl Raising Project: breakdown.
A well-known Mage died in an accident during an experiment. People in the Magical Kingdom mourned for the great person who had lived for a long time and built countless magical spells and items.
Several months after his death, his agent sent an invitation to his relatives. They were told to go to The Island that the deceased used as a villa and research facility.
A note was written on the invitation card. It stated that the people who received the invitation had the right to inherit his property. According to the rules in the note, they were all required to go to The Island to decide who would inherit the property. It was said that those who did not come would lose their rights to the inheritance and that each person could bring up to two Magical Girls as companions.
Mana, who received the invitation as one of the inheritors, looked at the card doubtfully, but after careful consideration, she decided to contact two of her friends who were MagicalGirls.