https://store.playstation.com/#!/en-us/games/addons/atelier-sophie-extra-event-'latter-days-episode'/cid=UP4108-CUSA04926_00-ADDEVENT0FIRIS00

http://www.dualshockers.com/2017/03/30/atelier-sophie-gets-free-story-dlc-bridging-the-gap-of-events-between-atelier-firis/

Koei Tecmo released new story DLC for Atelier Sophie: The Alchemist of the Mysterious Book, available now for PlayStation 4, PlayStation Vita, and PC.

The free story DLC, titled “Atelier Sophie: Extra Event ‘Latter Days Episode’, is an additional scenario that features a reunion with Meklet and Atomina. Additionally, the DLC serves as an epilogue that leads into the beginning of Atelier Firis and shows what brought the two to cross paths in Firis’s village.

Currently, it seems this DLC is only available on the North American and European PSN store. After checking the Steam page, the content has not yet been made available.

Finally! I definitely prefer this over plus versions.
I still have to finish the game though.

Me too. I prefer expansion versions tough, even if it means spending the same money again. At least its avaible in physical form.