The Neko I found -Nalu fanfic

While I was walking home from school I saw a small little cat, or what I thought was a pink kitten. When I was studying I realized that he responded to natsu... Natsu, I wonder why he reacts to that name, when a girl starts to bully me at the mall a boy, pink hair and pink... Ears?! Well the guy comes in and saves me from her. Why he would do that I have no idea.