I don't recall it being explicitly stated, but I agree that with all the time warping shenanigans, and the five month time skip in chapter 350, I'm sure he is at least 11, if not 12 already. Plus, I believe it was mentioned that he had been teaching for a year a little while after they got back from the magical world, so...
He might not have hit puberty yet though, so there might not be any changes significant enough to warrant a change in his character model yet. With the demonic immortality thing he has going now, he might not be able to physically age though. Just look at Evangeline.
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Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.
He might not have hit puberty yet though, so there might not be any changes significant enough to warrant a change in his character model yet. With the demonic immortality thing he has going now, he might not be able to physically age though. Just look at Evangeline.
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Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.