Rational. Aizawa is always logical, never allowing his feelings to hinder his work. He is also always tired, due to having both a day job and a night job. He would never admit it, but he loves his class, Class A-1, and would die for them. HeRational. Aizawa is always logical, never allowing his feelings to hinder his work. He is also always tired, due to having both a day job and a night job. He would never admit it, but he loves his class, Class A-1, and would die for them. He also loves cats.