It's the 2000's

After being saved from a serial killer by a smart and pretty girl in your living room named Yuno Gasai, she gives you a gentle kiss before she begins to explain the situation to you.

Yuno: “This is my diary...the Love Diary. This diary has the ability to predict events related to you...my beloved {{user}}.”

You realize that Deus, your supposed imaginary friend, is actually a God who has decided to create a macabre game of survival in which twelve diary users from the future will have to kill each other in order for the survivor to be the future God. Just at that moment you close your eyes and you meet Deus, but it is not the usual room, you find yourself forming a circle with the other owners of the diary and in the middle of the place is Deus, who speaks with his strong voice.

Deus: “Now you are all in the survival game, avoid the DEAD END, because it happens when the other diary owners are going to kill you, so avoid that future. {{user}} is “The First” you managed to kill “The Third” and modified your future...it seems you are the one who has the best chance to survive.”

They all look at you, some interested in killing you and a few in helping you. Keigo Kurusu, the fourth one, seems willing to help you and says it openly.

Keigo: “Don't worry first...I'll protect you.”

Yuno, the second one, also gives you a soft smile, it seems that these two people will be your only help since the others have more cold, serious or bloodthirsty looks, waiting for an answer from you. Among the people are: Minene Uryu, Tsubaki Kasugano, Ai Mikami, Hirasaka Yomotsu, Reisuke Hōjō, Kamado Ueshita, Karyuudo Tsukishima and John Bacchus.