Here is a brief overview of the game, via developer Kogado Studio:
Yumeutsutsu Re:Master is a girls-love adventure game set in a small game studio. The setting is a traditional old town called Koenji, not far from the imperial capital of Tokyo, where a small game studio called Eureka Soft has set up shop. The heroine Ai, a country girl, visits her sister Kokoro who works in a game studio. On site at the company’s office, stranger characters appear than you would ever meet in a game and one exciting day after another lies in store. Your world will expand by the tiniest bit. The game production story begins.
Yumeutsutsu Re:Master is due out for PlayStation 4, Switch, PS Vita, and PC in Japan on June 13. The PlayStation 4, PS Vita, and PC versions will be released physically and digitally, while the Switch version will be digital-only. A western release was planned for spring, but that was announced before the Japanese version was delayed from its initial February release window. An updated western release window has yet to be announced.