Use APKPure App
Get 絵本ナビ:絵本が読める&読み放題も 絵本4万冊を掲載! old version APK for Android
You can read the picture book before purchasing with trial reading! There is also an all-you-can-read plan for reading aloud. The official app of "Ehon Navi" used by 20 million people a year