The Human language was the same as the Demon language, except it was written backward and with different letters.
So, all Alex had to do to learn it at the bare minimum was to understand the alphabet and read everything backward.
Once he was done, he could read anything in the entire world easily.
The only reason Alex had yet to learn the language was because of the skill in the Black Stele. The intention to learn the skill alone made you get hurt by the intent hidden in the stele, being able to do so would make you a clear target for the intent.
However, now that he was so far away and would take such a long time to return, Alex decided to learn the language and hone his intent with the current book he had.
It didn't take him long to finish learning the language, and so he brought out the book and opened the first page.
