Flammenwurfer

So there's 12 monsters

So complete mastery just transmigrates you?

Ah, so he probably skipped to "stealing"

Wasn't the castle called "The Land of Ai"?

Some works have gods in a "diminished" state that's no more powerful than a person or monster and require a kind of sacrifice to maintain their power.... up to and including children actually

Imagine if it's lung cancer....

Well, technically it does require external resources, but it's usually not hard to get oxygen

Again, teaching might not be useful, but Chemistry certainly is

His teaching ability might be useless for now, but his knowledge of chemistry certainly isn't.

Country -> Guo So his name is Zhou Jian Guo