The chapters are short, which wouldn’t be a problem, but they are released inconsistently, sometimes you’ll get one 2 days in a row, other times you’ll see nothing for days. The story has lots of potential, but isn’t using it to its fullest. Lots of chapters for the first and second year seem to mostly just to show time passing until something happens. The problem also occurs during the summer chapters where barely anything happens. It doesn’t show his progress with magic, but says he made a lot of it. I at least hope they do something interesting during year 3 like taking the dementors, something that makes it less like the books. Also, he should get more contracts with wizards, pureblood, muggleborn, even teachers. More needs to be done to show that the worlds are connected rather than him just being a ‘regular wizard’ during his time at hogwarts. Also needs more interaction with devils, either from the Gremorys or from other houses. They are definitely going to be important later, but there’s been very little interaction with any of them so far. Even less with other devil heiresses Rias knows since he’s only talked to any of them once. Lastly he isn’t using his abilities to his fullest. His sacred gear allows him to learn whatever he wants to from his magus, but also allows him to mass produce things with their help. Despite making them and having them for months, they haven’t done much to have been a good idea to have. He can also gets stronger by adding magical creatures and plants to it, but he has yet to go looking for any of them, despite definitely having the capability to do so. As a character, while he’s well built, you’ve made Harry far too passive when it comes to doing things. He’s wasting his potential, and when he does anything to get stronger its barely or never shown. He also needs to interact with other characters more, since it feels like he doesn’t talk to them unless they start the conversation. The story is great, but that doesn’t mean it shouldn’t get better where it can.