0 Prologue.

One of the worlds built in the virtual space. In this world, Kagami sits at the highest rank of the Nine Wise Masters.
One day, tired from an all-nighter, he falls asleep in the virtual space. When he wakes up, he finds himself in a world different from the one he had known before: ....... The most important thing is that the austere, old and dignified figure he was used to has become that of a young girl.
If you are asked who you are, and you honestly tell your name, you may destroy the solemn image you have developed. So I came up with an excuse: .......
I'm just translating this for fun and I am also reading the manga and the anime.