Talk:Sawaii Hitomi/@comment-30778654-20170930205234/@comment-25156300-20180404235128

There's a line you cross that bends the canon story too far. When this happens, the character should be labled as an AU (Alternate Reality).

The whole point of making an OC for a canon story is to fit them into the world. If you drastically change canon events, it's no longer the same story that you're fitting them into. If you just flat out replace a canon character with your own, and still do the role they did, it's not really original anymore.

Even though you can technically do whatever, there's still a certain etiquette when making OCs for an existing story.