There was a man in the desolate black. For three hundred years, he was alone. However, that day, his life changed.
A rabbit-like object came to him and asked him if he wanted to go with it.
He asked, why should I go with you? Who are you?
It answers, because of the choice of fate, I am System 201.
He wonders what fate is? But he went with it anyway.
Main attack,
The author guarantees that there will be no cheating.