Okay, I tried playing this game for an hour. It did seem to tax my system quite a bit at first starting up. But once it started running it was fine.
The first thing I noticed was that the game looks beautiful. On the highest settings, there are gorgeous views throughout the game world.
The first NPC you meet seems just a bit bland. Compared tot he rest of the world, her model looks a little unpolished against the background of the environment. I sprinted and hopped around the island noting a few points of interest. Then I met Sakura at this stand, and after a few dialogue options, the game locked me into a conversation with her, with no option to continue or leave the conversation.
So I restarted the game again and my first gripe is this. I couldn't find anyway to save the game.
The dialogue seems to move fairly slow, but I can attribute that opinion to my vast library of Renpy games where dialogue is instantly skippable and you can read at your own pace.
The game in it's current states (With an hour of playtime) still seems a little barebones. Sakura told me of a few NPC's on the island, but when I went to go find them, I found nothing. But this could be due to that content not being in the game, or locked behind some sort of progress/quest that I couldn't find.
An open-world game like this seems very ambitious. So far, it's beautiful to look at, but it feels a bit clunky to play. I feel like some active direction to navigate the environment would be appreciated. Maybe a journal of some sort to monitor quest progress.
Even though I encountered a bug, and have a few issues with the game, I'm giving it 3 stars, because it's impressive in it's current state. But it could be better, and I'm assuming it will get better in time. Keep up the good work!