You can buy it on Amazon and it is not in English but you can download a fan-translated English patch which is what I use (since I don't know Japanese).
Though as of writing this there's only 1 copy left and you'd still need to find the fan translation. There's a localized version coming of a much newer version of Rewrite, but as we mentioned there's no ETA on that.
Difference between this and this?
You can buy it on Amazon and it is not in English but you can download a fan-translated English patch which is what I use (since I don't know Japanese).
You can actually find Japanese copies of it on Amazon (regular) here https://www.amazon.com/Visual-Arts-Rewrite/dp/B004GUTDY4/ref=sr_1_4?ie=UTF8&qid=1466890877&sr=8-4&keywords=rewrite
Though as of writing this there's only 1 copy left and you'd still need to find the fan translation. There's a localized version coming of a much newer version of Rewrite, but as we mentioned there's no ETA on that.