Ok, but what do you do with all that free time that you have?Well if you read a little more, you will know that in the room of Ryoka (Enomoto), you can check his diary and see the scene from his point of view. If you dont read the diary you only will see the scene from the MC perspective.
Furthermore, you need to check the different mails that pop up in the game (Press K or L, i dont remember the Key from the use of the cellphone).
So, check more the game and you will see that is so easy to follow the differents paths that the game have.