OC contest: Adding your character to my book

Hey guys! Before I started my first book, I just want to add more characters to my book. You see, I ran out of OC character ideas to add in my book and I cannot add my old OCs that I used on my old account. Why? Because those are my Bakugan Battle Planet OCs! I wanted to use Harry Potter characters in this book. I'm talking about OC, not the actual Harry Potter characters you find in Harry Potter books. So if you want to enter, read this book.