Review Detail of Alchemist in Harry Potter: The Boy Who Eats[COMPLETE]

The story has a good premise, but the MC is incredibly annoying. He's too loud, exuberant and constantly acts without thinking about the possible consequences of his actions. Sure, it's reasonable for him to act like this since he doesn't have a lot of experience and was never taught better, but that doesn't make him any less annoying. He also shows no real interest in learning magic and only cares about eating different food. What's the point of writing a Harry Potter isekai story if the MC doesn't actually try to become a skilled wizard?