Nightmaer

No, his name isn't a misspelling. It is nightmaer, and he's proud of it. He is the scariest beast of all..

One skill of his is that he can learn new languages incredibly fast...

He's aggressive, violent, a massive tsundere...  

He starts off as mean and insane but when you really befriend him he will change. Once he met the human that was truly sweet to him no matter how bad he is, he became warm at heart..

Goldie is his adopted brother