Yumeko Sakurai, a yandere high school girl, promises to be Esdeath, Homura Akatsuki, and Mikoto Misaka.
She accidentally fell into the space of a person who claimed to be God Y. She could only leave if she signed the contract inside, so she was forced to sign the contract.
However, her dream also came true, because it was written in the contract that her wish could be realized, but she would have to pay a price for it.
The souls of Esdeath, Homura Akatsuki, and Misaka Mikoto will be sealed in her body, and she will start a new life!
But the soul of Esdeath sealed in her body is ready to move, and will replace her as the number of times she uses her abilities increases.
If the Armed Detective Agency were gone, she would die too!
But this girl will despair about all this suddenness and never being able to see her family again?
Concept: The price of beauty is eternal madness!