Do you know werewolf? Or do you know Lupin?
Yep, Lupin is a werewolf. If you have read Harry Potter, you must be known this man.
In magical story, it usually has one or more werewolf. For example, Harry Potter, The Vampire Diaries.
A werewolf always is in the shape of a man on normal day, but, he will change into a wolf at the time of the full moon.
And do you know how to become a werewolf? I don't know. Maybe you can look into magical book or other references.
However, whether it exists werewolf in the real world or not, it's mystical. Just like people in China believe that there are fairies in the sky. We can't prove that is true.
