It's interesting to see a game I bought for 1,320 yen on dlsite 6 years ago now cost 0.99 USD on Steam. I still remember there being something about one of the side-characters during the tutorial missions that appears during the postgame (she had a modified character chip, but you couldn't have her join your party; she was the character I found the most appealing, so it was sad she wasn't a secret companion after her bust-up upgrade).