Hair Stripper/Remover.....hELP!

I'm currently in a tricky position and I don't know what I can use to strip my hair from it's colour. I have really dark hair (I will attach an image below so that you can see)

and I want it ginger/brown like my natural colour or Emma Stone's recent colours. I don't know however how I can do this without bleaching it :( please if anyone has any advice/knows anything that I could do to get rid of my current colour I will be very very grateful! 

Please comment or message me on my email toniswardrobe@gmail.com 

love toni x