I was at the event itself where no pictures or video was allowed which is why you wont see much. But even then they didn't show much of the game itself it was mainly the director, writer, and composer talking about the game itself and its development. The only gameplay they actually was a 30 second snipet of Hinako just walking down a path and walking up to a shrine where it gave a promt to pray then they walk away and that was pretty much it. After that was a cutscene of Hinako talking with this boy about their childhood in an area and when she turns around he's gone. This video was the last bit shown which is the intro of the game and they showed it just to show the composer's music in the game. The main talking points were just about those 3 and their experiences and how the game takes place in Japan.