So... I've been wondering for a while... since I played the demo actually, which was really fun, but... it's 2020 now. shouldn't you, just maybe, update the release date info??
This game is probably never going to get a full release; as people eventually asked Agashi, the creator, when the game was going to come out, however Agashi has never responded or replied to anyone ever since 2018. A lot of people think that they just scammed them and took all of the money that was donated to help fund the game, while the few minority think that something bad happened to them. So everyone just lost hope and forgot about this game. There's a bunch of other stuff and drama related to Agashi that happened since 2018, which you can find by reading the other threads on the game's page. If you don't feel like doing so, then I can try to link some of them here so you can read what's been happening, or I can hopefully try to summarize everything if you wish.