When you reach the border village in chapter 1, there is a line that says "it's sunrise when we finally arrive at our destination" . In the next line you have "crows are greeting the arrival of night" which means it's somehow sunrise and sunset.
I mean to be perfectly honest I find this new one more intriguing that the last one. you could argue that half the "train a slut" games on here are the same game, or you could enjoy some new content.