What's it like to be a jailbird in an alien world?Thief, pirate, assassin, master swindler, terrorist ......Werewolves, Bloods, Witches, Necromancers, Phantoms ......This is the Rosebud Iron Prison where the world's most dangerous magical girls are gathered."I must make this place the best model prison in this world!"A warden who had travelled to a different world said so."Warden, someone escaped from prison again!""Capture him and put him in solitary confinement."Today's Rosebud Iron Prison was also a peaceful day.

The Divine Comedy, The Theory of Evolution, Encyclopaedia Britannica, The Theory of Relativity ...... An unparalleled masterpiece born in the history of human civilisation, with arcane and magical powers in other worlds! The Power of Original Sin, Biological Evolution, All Arts ...... As long as one reads through the secret codex, one can obtain all sorts of powers! The only thing that bothered the people of the other world was that it was difficult for them to read and understand Earth's writing. At this time, a library worker came from Earth ......