Thread:KusaNin/@comment-44090696-20191102012628/@comment-25156300-20191102031353

Try it now. There used to be a page with that name. It had been deleted, but an old redirect was still there.

Whenever you do come across a page that exists with the same name, you can just add a bit more to the title. For example, if the Flower Release page was still there, you could call your page "Flower Release (Hanako Clan)" or "Flower Release (HanakoUchiha)". Anything extra tacked on at the end would work. Just so the title isn't exactly the same as another page.