To most people, being out of place within a group was perfectly normal for it meant they were 'unique' and 'special' but to Nicholas Weasley, being out of place in his family meant that he was ignored for the majority of his life, his parents unintentionally mistaking him for another boy in their household, his siblings forgetting that he was their little brother and people always whispering behind his back. Nicholas had dealt with it all, from his mother apologizing frequently when she finally noticed who he was to his brothers and Sister becoming guilt ridden that they hadn't included him in any of their games.
Truth be told, Nicholas was used to being alone, to being invisible amongst his family members. He was used to hearing people mumble that perhaps he was adopted, perhaps the Weasleys had taken pity upon him, or perhaps he had been a homeless orphan before. He was used to watching his family members forget that he was right there, talking on and on about something he shouldn't hear, he was used to being out of place within the world, he was used to being invisible.
So, when his Hogwarts letter drops through the window, The family are heavily surprised to find out that he's been accepted into Hogwarts but Nicholas seems to be even more surprised when, as he reaches the school for his first year, his invisibility doesn't work and he's suddenly crowded with people asking him questions, paying attention to him, and including him in their activities. Little does he know, his year won't just be filled with friends and enemies. A dark enemy is approaching and it's target is none other than Nicholas Octavius Weasley, eighth child of the Weasley family.