Also, the reason he got into medicine in the first place was so that he could find a cure for his ailing sister's condition, though, like Eriko mentioned, it may just have been for self-serving reasons.That saying, if the Imagine Spot he had prior to meeting Sato was anything, it might've been genuine, if not exactly an all-consuming worry. He shows concern towards his sister, Eriko, when she's kidnapped by Satou early in the story, but Sato notes later that his inquiry about her to him during their first meeting seemed insincere. After his life went to hell and he became a wanted man on the run with no chance of a normal life, his pretense of being a 'good' and 'moral' person went out the window. He even acknowledges that he tried to be a good person simply because that's what you are supposed to do to be accepted in society, not because he felt any moral desire to. By the time the story hits its stride, the only thing keeping him from being a flatout Villain Protagonist is his strong grip on his Moral Sociopathy/ apathy. Anti-Hero: Though he starts out as a Paragon, doing his best to avoid killing and treat everyone gently - in his own words, 'be a fine and upstanding person' - he eventually slides allll the way down to Nominal Hero and even Sociopathic Hero as the series progresses, he becomes ever crueler, more ruthless, and more selfish, but still one of the more heroic characters.Though, his shining moments are usually only brought out when he's in a particular sticky situation and he needs help. But, there's usually a great, big 'but' attached, for all the anime does round out both his heroism and his less heroic traits a little more. Adaptational Heroism: Downplayed and subverted: Kei both in the manga and the anime has his moments of doing genuinely badass, heroic things.The Ace: Before the whole Ajin mess he got himself into, he was a brilliant student with remarkable achievements and with a bright future in medicine ahead of him, not only acing, but getting a perfect score in a mock medical exam.Our cynical, loner protagonist who finds out he is a demi-human after an unfortunate accident. Voiced by: Mamoru Miyano (Japanese), Johnny Yong Bosch (English), Jose Antonio Toledano (Mexican Spanish)

Ajin demi human characters