Board Thread:Questions and Answers/@comment-27229742-20151102165322/@comment-8846246-20151102193524

Rival-chan is nothing more than what Osana used to look like and a placeholder file. There isn't any character to Rival-chan. She was placed there to test the red outline and was probably never removed because there's no reason to. He also referred to Rival-chan as Osana Najimi in a recent update. So he doesn't really acknowledge them as separate characters. There's no reason to have a page for a placeholder file.