In an e-mail on 27 January 2026 to users :
Remember how we mentioned a new platform [for the ROW market] was coming in 2026? Well, surprise! We are currently expecting to launch this February.
…
You asked for more flexibility, and we delivered. We are moving to LCP (Lightweight Content Protection). Our philosophy is simple: You buy it, you own the right to read it, with or without us. This move breaks down the “walled garden.”
Freedom of Choice: You aren’t locked into one single app. When you buy a book, you can download a small license file (.lcpl) from your library.
Your Favorite App: You can open that file in any LCP-compatible reading app you prefer. The app registers your device, downloads the data, and you’re ready to read.
There is no mention if this applies to bookwalker.jp (domestic market) as well.