Keigo Kurusu

"Worry not, I will lay you to waste."

Characteristics:

Keigo Kurusu(来須 圭悟) is a fictional character from the manga and anime known as Mirai Nikki(Future diary). He is a police officer, so it follows with reason that his diary relates to his work. The "Investigation" diary gives Keigo information of future crimes and activities committed anywhere within the prefecture he is assigned to. Whether or not this means his diary can record events that will happen simultaneously in different locations is still up in the air. Its major flaw is a location issue; his diary is rendered useless at predicting anywhere outside his patrolling district.

Calm, cool and collected, Keigo does not show any interest in wanting to win the game. Unlike the other players, his participation is an effort to stop the murders that will occur if it continues. He makes an effort to recruit some of the other diary holders into his cause, but his main goal is to capture the ones too dangerous to be left roaming free. He was chosen by Deus to balance out the criminals and maniacs that are also taking part in the game.

Plot:

After the Ninth's attack on the school he forms a three way alliance with Yuno and Yukiteru, the "Future Diary Alliance". During the Omekat Cult incident he fixes the broken pipes which starts the sprinkler system, puts out the fire and saves the 6th and Yukiteru. Later he catches the 9th after she is released by the 12th and makes a deal for her release, for them to trade contact information. In the 5th's infiltration he contacts the 9th about the fact that the 5th has infiltrated Yukiteru's home and how he is hesitant to kill him since the 5th is a kid. In the 10's attack his name, the 4th, is said before the 10th is killed and a gunshot is heard. Later in the 4th's betrayal he tries to kill Yukiteru and it is shown that he has made a new alliance with the 9th who he has working at a hospital to protect his wife and child. He puts warrants out for the arrest of Yukiteru and Yuno. When they infiltrate the hospital he sends in a swat team to kill them after he refuses the 9th's terms for their escape, his wife and son for their release. After the dust settles from the light gernade Yuno releases he captures her using her as a human shield aganist Yukiteru. He is then shot by Yukiteru and they believe him to be dead. Then the 9th appears with his lietunant and he makes a deal with the 9th, the price being his life as he breaks his diary and he dies.

He is named after Mercury — roman god of merchants and travelers.