Moore
A mysterious young man is under house arrest in a mysterious small room "Academe" that looks like a study.
I don’t know what method he used to find the protagonist in the dilemma, relying only on his connected consciousness.
He is obviously willing to help, but he seems to have already known that magic can be used without a magic weapon, and he has a deep understanding of the Aki state. In short, it is difficult to guess the details.