Like Deus Ex Machina, God of space and time. And Murmur, his servant.
Deus asks if he wants to change his life, and sends him a message that contains the future. This will be a new game.
Meanwhile, the serial killer continues to stalk people who are out alone after dark.
When he wakes the next day, Amano sees that his diary has already been entered. With surprisingly confirmable details.
Deus tells him that the diary is his future, with that drawback: if it is destroyed, he will die.