Did someone already finished the game yet or did the dev. clearlified about the paths ?
I kinda dropped it after you leave the school room and you have the option where you wanna go. One the option you chose its decide who you meet, the teacher or your old class mate.
And since it gets documented in your Diary, and you dont have the chance to meet the other chick since you decided to go left (lol), I take the game focus is of a liniar path system where you can and will lock yourself out of the game for other chicks to romance ?