On March 23, 2017 going to release the PlayStation Vita version of the Hatsuyuki Sakura Visual Novel game in Japan. The game is the official port version of the 2012 released PC ADV game and today you can download the DEMO version from the Japan PSN.
In the demo version you can watch the opening movie and you can try the first early chapter of the story. There is no information about the save data file port.
You can download it from here: Hatsuyuki Sakura DEMO PSN (Japan)