@Kampfarsch not really agree. There's a gray area that proving that he's a time traveler might work, it's just that it may or may not cause problems. Hiding his time traveler status is the best course of action of now.
Also you were saying that it was easy to prove that he's a time traveler while he was a goddamn kid. Who the hell would believe a kid is from the fucking future and knows the secrets of the universe.
Why didn't he train the other kids in the village to prepare for the attack? Its not like he is strong enough to beat all the monsters by himself
This is shit
Why all that drama if every single one of them is strong enough to one shot a bear? The dad could have simply chopped the first one up, or better yet, they could have just used that same spell and taken it by surprise.