I am an Amazon Prime member and now Prime sale is taking place in Japan as well.
I have a white kindle with special offers that I bought two years ago, but the special offers are really annoying so I am tired of using it. So I decided to get a new Kindle Paperwhite Wi-Fi version without special offers (save 45%). 16,280 - 7300 = 8980 yen.
Kindle Paperwhite E-reader - White, 6" High-Resolution Display (300 ppi) with Built-in Light, Wi-Fi
And I also ordered the cover. Not pink but magenda (Fuchsia).
I hope I will use Kindle Paperwhite more often than my old Kindle.