John Bacchus

John Balks is the Eleventh diary owner, and the final owner introduced in the series. The Mayor of Sakurami City, John Balks is actually the creator of the Future Diaries technology and suggested the survival game to Deus Ex Machina. He fused the first Future Diaries together to create his "Watcher Diary".

Personality
Balks is a middle-aged spectacled gentleman dressed in fine clothes and wears a hat resembling a Jewish kippah. Using his position as mayor of Sakurami City, Balks is the most powerful man in the city and his influence is very strong. In his opening scene, Balks convinces the entire city council to agree to shut down Kamado Ueshita's orphanage by crying crocodile tears and blubbering about how he adores every child in the city as if they were his own. Balks is obviously intelligent and manipulative, but can be just as honest.

He is very polite and acts like a gentleman towards Kamado. However, he is perhaps one of the more ruthless of the twelve diary owners, being strategic and using his intelligence to make any situation's outcome be to his advantage. His goal in the game is to help humanity evolve to a higher form of being, having similar beliefs like the Macedonians, Romans and Nazi Germany.

Diary & Abilities
His diary is known as The Watcher. It is an iPad like device that allows him to check the entries of every Diary User, be it a participant or an Apprentice Diary User. This gives him several advantages such as being able to track the position of his foes as well as prepare countermeasures if an entry suggests he's in danger. While very powerful it also has a weakness, as Diary Users can simply rewrite their entries it means that The Watcher is vulnerable to misinformation. It also seems to have some limits as by the time he uses his Diary the only remaining users use electronic devices as their diaries (namely cellphones) although it is said by Deus himself that it can read any diary, so it is unknown how he reads entries on non-electric devices.

Being the Major of Sakurami City he has great power and influence in the city's politics as well as wealthy enough to have his own personal guard. He once used his influence to shut down the Mother's Home in order to corner The Eighth into joining him, which shows he also has great intelligence and is a skilled manipulator. The greatest demonstration of his wealth is with the Holon supercomputer, which has 3 servers and is overall Japan's third most powerful supercomputer. He has his personal guard cover 2 whole floors on his towers and still have a large amount of men to defend him as well as the needed weaponry. He knowingly he would face The Eighth had a jammer attached to his personal car to cut the connection to the Server's Diary and leave the orphans defenseless.

His power is great enough to have access to information and codes only known to Yuno's dead parents, which served to protect him begind a Bank Safe.

MurMur in one chance said he had around 99% chance of being the winner, and is argueably the most powerful of the participants at the time of his full introduction.

Backstory
Balks, wishing to evolve humanity to new heights, met and approached Deus with the proposal to give mankind some of his divine power. His concept was the Future Diaries, which could predict the future. Learning of Deus' approaching demise, Balks' idea would contribute to the survival game Deus had in mind to choose a successor. Deus used his powers to help create the powers of the Future Diaries, whilst Balks developed the actual technology. The two made several archetypal prototypes to test out the powers of the diaries - The "Radar" Diary, which could predict a person's surroundings; the "Searcher Diary" which predicts the actions of certain individuals; the "Organizer" Diary which predicts the actions of groups; and the "Supplier" which gives others the power to predict the future.

Balks formed a fifth prototype, the "Watcher" Diary, in order to watch and record the activities of all other diaries. This effectively made Balks the first Future Diary owner, despite being titled as Eleventh in the survival game.

Enter Eleventh
Balks debuted with the other diary owners during Deus' first meeting of the survival game, targeting Yukiteru Amano as the primary target to eliminate after he killed the Third owner Takao Hiyama. He is present at the second meeting, and other subsequent ones, although he does not make a move in the game until later on, likely observing the other owners until half of them are eliminated.