Kei Uzuki

**Kei Uzuki** (有う月づき憬けい, *Uzuki Kei*?), also known as "**X**" or "**Slur**" (×スラー, *Surā*?), is a killer seeking to overthrow the JAA.

Roughly around the same time Taro Sakamoto was given his bounty, Uzuki slaughtered one-fourth of the assassin industry, leaving a large 'X' mark at the scene of his crimes.

Due to his actions, as well as those of his comrades, Kei's the primary antagonist of the series.

## Personality

Uzuki was initially portrayed as cold, being able to kill a quarter of the assassins in Japan in cold blood. He also provoked Sakamoto by mentioning his daughter when the latter refused to fight with the intention of taking the former's life, hinting that he may harm Sakamoto's family if he were to be left alive.

However, during his groups attack on the JAA, Kei showed a friendlier, more caring side which can be shown during his conversation with Gaku and the remorse he felt at Uda having to sacrifice himself so they could escape Takamura.

## Appearance

Uzuki is a seemingly slim man of average height. He has light-colored, messy hair that is parted in the middle. He has black eyes that gives a dead and empty look. He wears a coat with a turtleneck as his inner clothing, along with slacks and formal shoes.

Shinaya described him as a good-looking man.

## History

Uzuki grew up in a JAA orphanage, enrolling in the JCC at and passing the exam at the age of 14. Although he scored high during his entrance exam, Kei wouldn't stand out too much and this would continue until he left JCC in his fourth year.

During his time in the JCC, he was forced by his older brother to work as a spy on a mission which resulted in the assassination of the JAA chairman's wife and daughter under threat of his friends from the orphanage being killed. In the mission, Uzuki offered Asaki to assassinate Kindaka instead of the chairman's wife and daughter to which Asaki accepted.

After being poisoned by Kobayashi along with Sakamoto, Nagumo, Rion and Kindaka, Uzuki was sent to find more antidote for him and Kindaka.

At that moment, Asaki called him to ask him about the mission, putting Gaku on the phone to force him to kill Kindaka or Gaku less his friends would die.

Uzuki, who was fed up with the topic, throws his part of the antidote, choosing instead to have himself killed by the poison.

Kindaka arrived at that moment to stop Uzuki but fainted in front of him due to not having his part of the antidote which resulted in Sakamoto and the others thinking that he'd killed Kindaka, causing him to run away while Rion pursue thereby leading to the disappearance of both.

A year later, Sakamoto tracked down Uzuki, finding him next to Rion's body, causing a fight between the two.

Years later, Uzuki would receive the name of **X** as it was the mark that he left when carrying out murders. At some point, he and his friends decided to go against the JAA. He then met Kashima to whom he promised to create a fair world.

## Skills & Abilities

**Overall Skill Level**: Uzuki is the leader of X's Organization and an extremely powerful assassin.

**Master Combatant**: Uzuki is an incredibly skilled fighter, capable of massacring a quarter of the assassin industry, a feat so great that the Order had to step in.

**Enhanced Speed and Reflexes**: Uzuki is able to move extremely fast, appearing behind his opponents without them noticing. He is so fast that he is able to stab the legendary (although out of shape) Sakamoto in the stomach and even catch Sakamoto off-guard with a swing of his whip, which Sakamoto didn't even register till after the fight, and he was able to keep up with Sakamoto's blinding speed during their brief fight.

## Equipment

**Sword-Whip**: Uzuki uses a sword-whip, which is used to deal with long-range attacks and still be able to counter at close range.