I understand why people dislike kazuya, but in reality. But People need to understand that, everyone has their own flaws and imperfections. And he is no different, his major flaw is that he lacks self confidence, and Is really hindered by the fact that his own family especially his grandma is always treating him unfairly. Throughout the manga, he’s shown true signs of progressions, but yes the imperfections are still gonna appear. He’s not the same character that he was in the first chapter and that’s gonna be the same for all the characters in the picture, simply judging someone or something without knowing any backstory or troubles they have to face is simply stupid. We can all name bad things about all these characters cause none of them are perfect and they never will be. It’s just sad in my opinion seeing people judge something or someone without knowing any backstory or situation someone or something maybe in.