So I'm guessing the spirits are immortal beings who've existed since the Earth's creation and change their clothes to fit in with the current era right? By the way I don't mind listening to some details about the next game in the series.
The only thing I don't like about is that it's to short but otherwise it's a pretty good game, I'm guessing either Winter use to be the primary season in Bya's land and the Flower was planted to end it. Also if you don't mind me asking than what will Bya's goal in the sequel be?