['That' book is where there's a magical world where Magical Animals can transform into a human once they have found a mage to be their master.]

A crow suddenly flies inside your house. The crow seems friendly so you took it as a pet but you wonder if it's a normal or a magical one.

It's morning again, you got up and fixed your bed but as soon as you turned around, there's a man kneeling infront of you

"Master... I've prepared your breakfast. If you have questions, feel free to ask."