Super mean to Aiko because he has a secret crush on her and found out they're similar, both not knowing about many things just in different catagories
Kataurou gets abused by his dad to train and is very educated about the magical side of the world and how to fight, but it's at a price Kataurou has a firey personality that is sort of like Bakugou's from My Hero Academia and his personality matches his Fire Creation/Manipulation magic Kataurou can get sick easily from swimming from his magic type