Apocalypse

""Let the quest begin.""

Apocalypse, also known as the Book of Revelations, is the first artifact to be discovered in the world. It is a loyal servant of God. It works in conjunction with the Ark to operate the Quests.

Overview
Apocalypse takes the form of a medium-sized book. When the mandatory number of Negators gather around the roundtable of The Union, it gains a monstrous face along the spine and covers of the book, which consists of sharp teeth and a long tongue.

In the 100th loop, the number of Negators required was originally ten, but that rose to eleven after the completion of one of Apocalypse's quests.

In the 101st loop the number of Negators required was initially two, but has since risen to three.

Personality
It possess an overall hostile and sadistic personality towards humanity and Negators. It is very loyal to God. It always tries to scare or threaten people that talk to it. However, it also holds the quest in the highest regards, as it shows disgust and contempt for Move interfering with the quest for Sick because Andy is too powerful for them.

Unchange Arc
Apocalypse hovered above the roundtable at The Union's headquarters as Andy and Fuuko Izumo made their debut in the organization.

Union Arc
Apocalypse is revealed to be buried underneath Stonehenge in the 101st loop, which is then unburied by Fuuko. They then awaken by Fuuko to start the quests once more, only to find Fuuko passing on them, growing more and more frustrated as they are forced to spit out a total of 26 UMAs and fast forward time by 26 years as penalties as a result, all a part of Fuuko's plan to prevent all of the Negators' tragedies. They can only react in frustration when Fuuko finally agrees on a set of quest that offers them a third seat, Void, and Remember. When Void is brought back for the quest rewards, they express frustration over their success before getting punched by the boxer instinctively. After rewarding the Union for their success, they go back to sleep, but not before vowing to destroy the "lowly vessels" with their next set of quests.

Sick Arc
Apocalypse shows up to explain the nature of the Master Rules, and how the first ten cannot be destroyed. Later, they question why Move interfered with the Quest for Sick, and curses them because they wanted "entertainment".

Trivia

 * Apocalypse ranked 31st in the First Popularity Poll and 36th in the Third Popularity Poll (by having a tie with Yoshifumi Tozuka, the mangaka of the series.)