Kite Tenjo

Kaito Tenjo is a Numbers Hunter in Yu-Gi-Oh! ZEXAL and one of Yuma Tsukumo's rivals. He is actually a nice person, but when he duels he becomes quite ruthless. When his brother Haruto Tenjo fell sick, Dr. Faker told him that it was due to the "Number" holders and the Astral World. As a result Kaito became a Numbers Hunter. There is also a robot that accompanies Kaito which is known as Orbital 7.

Design
Unlike any other regular D-Pad version of a Duel Disk, Kaito's disk is a blue and single-bladed disk that curves outside. He can duel without a D-Gazer; however, his left eye turns red and several marks resembling a D-Gazer are seen when he Duels. When Kaito duels, his black outfit switches to white in a process called "Photon Change", which he resembles Jack Atlas. This is possibly the reason why Kaito isn't affected by Numbers' effect that usually increase the amplitude of the users' desires. Also, for some reason when he uses a "Photon" card, his body lights up.

Personality
Kaito shares a similar personality to that of Seto Kaiba when it comes to protecting his younger brother from any danger. Because of Haruto's condition supposedly being caused by the "Number" cards, Kaito Duels and acts ruthlessly when it comes to facing those whose possess such cards. He announces his arrival by whistling which tends to frighten the person he is about to Duel.

Kaito is opposed to inflicting fear on his opponent, calling it an unnecessary and despicable thing to do. This is shown when he scolds Orbital 7 for telling him extract every drop of Yuma's soul. He considers his hunting to be a job he has to do, not one he wants to do.

Anime
Kaito's brother, Haruto was acting very strange. Mr. Heartland informed Kaito that he could only be cured if they obtained the one hundred "Numbers" cards. Dr. Faker himself claimed that they must do so to save all dimensions. Kaito was given a robot called Orbital 7, to help him hunt for the cards. Using Mr. Heartland's penthouse as a base, they find and defeat the holders of the "Numbers". Thus far, he has obtained eleven "Numbers" using his Photon Hand ability, stealing the souls of the original owners and leaving them catatonic in the process. He wields the "Numbers" himself to aide him in collecting more of them. Kaito was feeling guilty about stealing the souls of the holders, but Mr. Heartland informed him that they had no choice, as all "Numbers" holders are evil, when in reality they are just victims of their card's influence.

Shortly after that he targeted Yuma next. During the Duel he easily outmatched Yuma with his 2 Numbers and his real ace monster, "Galaxy-Eyes Photon Dragon". When he saw Yuma using 2 Numbers, he claimed he is also a Numbers Hunter and looked quite pleased to have a rival. Just before he would have won the Duel, Orbital 7 showed him a hologram that Haruto had collapsed. Therefore he stopped the Duel and went to help his brother. Before he left he revealed his name and told Yuma to remember it, meaning that he will come after Yuma again soon.

It is shown that he works fast because not long after his and Yuma's duel is was shown that he has alreadly put four people in hospital in a catatonic state from their soul being taken with their Numbers. But it is possible that these four were people he already took Numbers from as he still has 8 unseen Numbers.

Later, when Jin confronted Yuma on Kaito's behalf, he claimed that Kaito was watching. This may only be a delusion, as the one whom Jin has identified as Kaito has yet to speak or take any action, so it might be a statue to scare the Number holders he duels, which proved to be effective as seen with Astral.

Manga
Kaito is a Numbers Hunter who was sent by his adoptive father, Dr. Faker from a different dimension in order to gather and destroy all of the "Number" cards as they are destined to destroy not only his universe, but all universes.

When Kaito first appeared in Heartland, he set straight out on his mission to find the Numbers cards, even by attacking and Dueling strangers in order to find them. He was shown to quickly defeat not only an unknown Duelist, but Tetsuo who he then quickly used as a sacrifice to entice Yuma Tsukumo in to a Duel in order to obtain his Number cards and destroy them. Angered by this, Yuma accepts, unlocking Astral to assist him in the Duel.

During the Duel, Kaito quickly gains an advantage by Summoning his "Photon Wyvern", destroying all of Yuma's monsters and attacking him directly taking him down to 1500. Yuma quickly fights back by Summoning "Number 39: Utopia", but seeing this as a threat, Kaito sends an explosion out and runs away as he was only testing Yuma's power.

Abilities
After he wins a Duel with a "Number" user, Kaito uses his "Photon Hand" which enables him to grab the "Number" card from their users and aging the former owner significantly. During that action, he takes their soul too. Kaito possesses an "Duel Anchor" which he uses to prevent a "Number" user from running away, until a Duel requested is over. Both of these abilities are technological in origin and were provided to him by Dr. Faker.

It seems he is also able to read the alternate language the "Number" monsters are written in, which only Astral and those possesed by "Number" monsters can read.

Anime
In the anime, Kaito's Deck focuses on the LIGHT attribute, to swarm monsters which he can then use to Xyz Summon his "Numbers". So far he collected eleven "Number" cards, but only three of them are known by name and its unknown if he includes all collected "Numbers" in his Extra Deck.

According to Mr. Heartland, Kaito's Deck was made by him and Dr. Faker by using science from another dimension.

Manga
In the manga, Kaito's Deck seems to be more centered around the "Photon" archetype, whilst supporting them with the various "Number" cards he has obtained by beating Duelists.