Koei Tecmo Games announced the release of the DEMO version Harukanaru Toki no Naka De 3 Ultimate. The full version of the game will be available from February 23, 2017 in Japan on PlayStation Vita but the DEMO will be available from February 7, 2017.
In the game you can play with the FULL first chapter without any restriction and you can move the save data file to the production version when you get it.
With the release announcement of the DEMO, Koei Tecmo released a web animation based on the original game what you can watch for FREE until March 31, 2017. The anime is a 1 hour long show in Japanese without any subtitles and you can watch it in here if you want: