The Mangaka must be so happy now
-Anime planned,has extremely high production values and it was executed amazingly
-Live Action movie planned
-Manga volumes are a top seller and the Anime might be one too.
And this is his first work (Hence the art) and he's very young too.
The anime being a top seller is a bit of an understatement if the predicted sales are anything to go by, and they're usually very close to the actual numbers.