Hajime Hinata: Hogwarts AU
Hajime Hinata is a Pureblood wizard (Werewolf/Lycanthrophy) that was born on the 1st of January 1970 and started attending Hogwarts on the 1st of September 1981, being sorted into Slytherin house.
He has a Red Oak wand with a Dragon Heartstring Core.
His favorite subject is Transfiguration and his least favorite subject is Defense Against the Dark Arts.
Hajime seems cynical at first glance, but it would be more accurate to describe him as a realist. He is quite skeptical and tends to worry more than the other Hogwarts students, but his worries are usually understandable. He is logical and keen, often annoyed by the idea of not being able to understand someone or something at all. He tends to be quite serious, but he does joke around and often goes along with his 'classmates' eccentric hobbies anyway, and sometimes smiles awkwardly and sheepishly while his friends engage in some of their usual weird behavior. He is sometimes annoyed by some of his classmates and can be snarky towards them in his thoughts as well as blunt while speaking to them, though he's more frank than sarcastic or mean-spirited. Though sometimes a bit submissive (especially with bossy girls), he is not afraid to speak his mind, and he can be rude if annoyed enough (for example, after enduring Hiyoko's attitude while studying in the Slytherin common room, he finally ends up stating "I don't even care anymore"). He can sometimes be short-tempered and snap at others, especially when he's tired or under pressure. He was also quite paranoid during his Hogwarts years and didn't have much interest in friendship, but he later really wanted to believe in his classmates and felt bad about doubting them while investigating his classmates' mysterious murders, though he understood it was necessary. He sometimes regretted exposing the murderers, as shown after singling out a murderer in his fourth year.
Hajime's more aggressive personality brought on by his Lycanthrophy is well-demonstrated when he attempts to punch Juzo Sakakura after he spoke in a very condescending and dehumanizing manner, and slapped Chisa Yukizome's hand away in anger when she tried to help him, which is notably different from the way the other boys stuck in a killing game would have behaved. Notably, he has also referred to Junko Enoshima as an "insane bitch", which is something Makoto wouldn't do even in the case of his worst enemies. Due to his more irritable personality, both Monokuma and Nagito have more or less jokingly compared Hajime to a tsundere, with Nagito calling him "tsuntsun hair" and Monokuma outright calling him a tsundere.
Despite his flaws, Hajime is generally pleasant and easily exhibits kindness and thoughtfulness to others around him; he genuinely cares about everyone. Although he may have trouble understanding or relating to his classmates, he is tolerant of everyone's eccentric personalities and quirks and is always willing to listen and give advice. His fellow Slytherin reinforces this by stating that he spends his time talking with everyone and gets along great with both the girls and the guys. Outside of class, he makes even the most antisocial characters feel more relaxed and they often reveal things about themselves they wouldn't tell anyone else. Due to this particular trait, Fuyuhiko Kuzuryu thinks that Hajime should consider becoming a counselor after graduating and Nagito calls him the Ultimate Serenity.
It's also heavily implied that Hajime is romantically inexperienced, appearing somewhat shy and even naive about the topic. He once mentioned that he hadn't really thought about it and has never asked a girl on a date. However, during his Hogwarts years and especially during his fourth year, several of his classmates appear to have a romantic interest in Hajime and he sometimes responds by flirting. He is sometimes shown to be a bit gullible when other people show interest in him, with he himself admitting that he is "kind of dense" while hanging out with Hiyoko Saionji. Ironically, he incorrectly assumes Peko Pekoyama has romantic feelings for him once while they were hanging, while actually she is one of the few people in his friend group who is confirmed to not have any feelings towards him.
Although he tries to hide it, Hajime is very insecure about his status as a werewolf, and it bothers him deeply. This caused him to admire everyone else in Slytherin more than anything, as he believed that being sorted into that house would fix his problem. He wished to be part of something bigger than himself, to become more confident and someone he can be proud of. He felt bitter about being a "half-breed". Chiaki was the one who guided Hajime to see the reality that whether or not he was completely human was irrelevant. It was largely due to her support and encouragement that he was finally able to overcome his depression and gain true confidence.
After Hajime breaks free from the Imperius Curse, he preserves his memories and identifies as Hajime Hinata, accepting that the future includes countless possibilities that can sometimes end in failure. As of being released from St. Mungos, it is revealed that Hajime and his inner wolf's personalities are mixed. Though he identifies as Hajime and acts mostly like him, having the capability to feel, he still becomes overcome with anger easily at times and sometimes his demeanor resembles more that of his inner wolf than Hajime. He is also capable of using his strength from his werewolf form without being transformed, which makes him the strongest person in the U.K if he has reason to be. However, his loved ones has stated that he still has humanity and emotions, which could make him surprisingly weak. "If you've got Kazuichi talking smack about you, you're not all that great", Fuyuhiko said laughing, referring to Kazuichi's "This guy's a Slytherin" comment from their early years at Hogwarts.