Entergram announced the release date of the PS Vita verison Owaru Sekai to Birthday visual novel game. The game will be available from May 11, 2017 in Japan for 4980 Yen + tax (package version), 3980 Yen + tax (download version) and 5980 Yen + tax (Limited Edition).
This game is the official remake of the 2012 released PC visual novel game which in 2016 March re-released on Android.
At the moment it is not clear what kind of changes will be included (extra route, or episode) Entergram will release these information later in this Spring.
The official website of the game already opened where you can find the first character information and you can see the included gifts of the Limited Edition version. This version includes the Soundtrack Album of the game with all the BGM, vocal tracks and the original soundtrack of the original game. Until more information, please stay tuned.