Changes

* [[IVQuatro]] (older brother)

Like his brothers, III wears a formal attire. However, in contrast to his brothers, [[IVQuatro]] and [[V]], who wear white and dark clothing, respectively, III prefers brighter colors, which reflect his more caring personality.

III has a nice, friendly and gentle demeanor, unlike his brothers' cold and brutal nature. III loves his family a lot and doesn't want them to fight, attempting to mediate disputes between IV Quatro and V. Dutiful and trusting, Tron stated that III always completed his missions, which are usually important.<ref name="ep34">{{episode|Yu-Gi-Oh! ZEXAL|34|ref}}</ref> V also trusts III more than he does IVQuatro, due to IVQuatro's reckless attitude.<ref name="ep33">{{episode|Yu-Gi-Oh! ZEXAL|33|ref}}</ref> Though concerned about his family's fate, he shows concern for [[Hart Tenjo]] during Tron's ritual.<ref name="ep41">{{episode|Yu-Gi-Oh! ZEXAL|41|ref}}</ref>

Although, III is normally nice, he can get serious if it is about Duels because he still wanted to Duel Shark, even after Tron told him to feel free to lose after he hands Shark "[[Number 32: Shark Drake]]". His caring personality is also reflected through his Duels, within his Tag Duel with IVQuatro, he used his cards to not only protect himself, but IV Quatro as well.<ref name="ep34">{{episode|Yu-Gi-Oh! ZEXAL|34|ref}}</ref>

In the past, III along with his brothers and their father, [[Tron|Byron]], lived a happy life with their dog. One winter night, their father gave III a ''[[Duel Monsters]]'' card - "[[Chronomaly Aztec Mask Golem]]", which III showed to IVQuatro. [[IVQuatro]] was jealous because only III received a card and tried to take "Mask Golem" from III. [[V|Chris]] told them to stop or their father would scold them and then promised to teach both of them how to Duel.<ref name="e46">{{episode|Yu-Gi-Oh! ZEXAL|46|ref}}</ref>

[[File:Young III and IV.png|thumb|right|III and IV Quatro during their childhood.]]His father became involved in [[Dr. Faker]]'s experiments, but Faker eventually betrayed both him and [[Kazuma Tsukumo]], sending them to another dimension as sacrifices to open the door to alternate dimensions.<ref name="ep55" /> As Byron didn't return from the trip, III and IV Quatro were were sent to an orphanage, while Chris remained at Dr. Faker's facility in an attempt to learn of their father's fate. However, after learning [[Kite Tenjo|Kite]] and [[Hart Tenjo]] were Faker's sons, Chris left [[Heartland]] with his brothers.<ref name="ep56">{{episode|Yu-Gi-Oh! ZEXAL|56|ref}}</ref> Their father eventually returned, but his form warped into that of a child. He took the name "Tron" and began plotting revenge, with III and his brothers aiding him.<ref name="ep55" /> Tron imbued each of his sons with a crest that was directly connected to their souls. Though it granted them great power, they would fall comatose if they lost a Duel while wielding a powerful "Number".<ref name="ep65" />

The day before the [[World Duel Carnival]], III entered the main chamber of his and his brother's apartment in order to hear about how [[IVQuatro]] managed to make [[Reginald Kastle]] enter the tournament out of anger and that this will assist them in obtaining the fabled "[[Number]]" series.<ref name="e26">{{episode|Yu-Gi-Oh! ZEXAL|26|ref}}</ref> During the second day of the World Duel Carnival, III tried to break up an argument between [[IVQuatro]] and [[V]], and was backed up by [[Tron]], who then made IV Quatro agree with V as IVQuatro's brash attitude would have ruined their plan. V then picked a "Numbers" card from a pile of cards and threw it to III, saying that [[Reginald Kastle]] must obtain the card to which III agrees with. He then walked off with IV Quatro in order to watch him Duel. Throughout the Duel, III watched his brother's ruthless power as he defeated both [[Bronk Stone]] and [[Caswell]] via a [[One Turn Kill]] with his "[[Number 15: Gimmick Puppet Giant Killer]]". Reginald then rode in on his motorcycle, surprising III, while IV Quatro just smirked.<ref name="e33">{{episode|Yu-Gi-Oh! ZEXAL|33|ref}}</ref>

Reginald threatened IVQuatro, who responded by suggesting they solve their problem with a Duel. Before the Duel could start, III used his [[Duel Anchor]] in order to trap Reginald in a Duel. IV Quatro objected, but III told him that Tron's orders are absolute. IV Quatro retreated, saying that he will see Reginald in the finals when he has a full [[Heart Piece]]. Throughout the Duel, III and Reginald continued to swap blows, and despite being asked by Tron to purposely lose so that Reginald could acquire "[[Number 32: Shark Drake]]", III continued to fight with all his strength, even to the extent that if Reginald didn't have the traps and spells he used, he would have lost. After the Duel, III gave Reginald a [[Heart Piece]] and tells him that he can keep the "Number" for wielding it so well and reveals that he possesses a full Heart Piece already as well. He then used the crest on his hand to create a blinding light so that he could escape. Later that day, Tron showed his appreciation to III for completing his task as he always does and says that Reginald has been touched by a "Number", thus he will begin to fulfill their plan.<ref name="e34">{{episode|Yu-Gi-Oh! ZEXAL|34|ref}}</ref>

[[File:Zexal-41 duel.PNG|thumb|right|Yuma and Kite vs. III and IVQuatro.]]

After V transported [[Hart Tenjo]] to Tron's residence, an abandoned gallery, the brothers watched on as Tron began to extract his powers via a ritual. As the ritual continued, Hart showed signs of pain which affected III, appearing worried for the young boy. After [[Yuma Tsukumo]] and [[Kite Tenjo]] arrived at the gallery, V sent III and IV Quatro to prevent them from reaching Tron so that the ritual could be completed. III and his brother then appeared before the two and attach their Duel Anchors, initiating a [[Tag-Team Duel]].<ref name="e41">{{episode|Yu-Gi-Oh! ZEXAL|41|ref}}</ref>

[[File:PreviewZEXAL42.jpg|thumb|left|III's and IVQuatro's strategy.]]

During the beginning of the Duel, the brothers targeted Kite, believing him to be the only threat present. However, after Yuma Summoned "[[Number 39: Utopia]]", III stated that they have to be careful of him as well, seeing as Yuma is also a [[Number holder]]. III eventually Summoned "[[Number 33: Chronomaly Machu Mech]]" and protected his "Number" card and that of his brother with the [[Trap Card]] "[[Number Wall]]". Later on, III played a key role part in IVQuatro's taunt against Kite, after his brother's words made the latter recklessly Summon "[[Galaxy-Eyes Photon Dragon]]" just to attack IVQuatro's "Number". III then activated his "[[Stonehenge Shield]]", draining the ATK of "Galaxy-Eyes" and chained this effect to that of "Machu Mech" to inflict 3000 points of damage to Kite.<ref name="e42">{{episode|Yu-Gi-Oh! ZEXAL|42|ref}}</ref>

However their move was [[negate]]d by Yuma. III and IV Quatro continued to target Kite due to the drained ATK of "Galaxy-Eyes". III was surprised by Yuma's continuous sacrifice of his own [[Life Points]] to protect Kite. Towards the end of the Duel, thanks to [[Hart Tenjo|Hart]] and Yuma, Kite is able to Summon "[[Neo Galaxy-Eyes Photon Dragon]]". This monster defeats both of the brothers.<ref name="e43">{{episode|Yu-Gi-Oh! ZEXAL|43|ref}}</ref> After the Duel ended, [[Astral]] tried to absorb III's "Number", but the power of III's crest protects him. During this time, he was briefly able to see [[Astral]]. He and his brother left with Tron afterwards. Some time later, III stood on the roof of Tron's new headquarters, contemplating what had happened.<ref name="e44">{{episode|Yu-Gi-Oh! ZEXAL|44|ref}}</ref>

After III fell to sleep, Tron left his quarters with IV Quatro and V awaiting him outside. IV Quatro implored that Tron give him powers the same as he gave III, but Tron stated that III and IV Quatro have failed him, and that he will have to turn to Reginald Kastle for his plan to work. As III is comatose, he was unable to participate in the WDC finals.<ref name="e51">{{episode|Yu-Gi-Oh! ZEXAL|51|ref}}</ref> This led to IV Quatro screaming at Tron due to the condition III has been left in.<ref name="e50">{{episode|Yu-Gi-Oh! ZEXAL|50|ref}}</ref>

Tron revealed to a being through a portal that although III and his brothers fell, his plan was still going perfectly.<ref name="e60">{{episode|Yu-Gi-Oh! ZEXAL|60|ref}}</ref> During Tron's duel with Kite, he revealed that he merely used III alongside his brothers, [[DroiteDextra]] and Shark in order to fuel his "[[Number 69: God Medallion Coat of Arms]]" with hatred as he had no emotions to spare.<ref name="e64">{{episode|Yu-Gi-Oh! ZEXAL|64|ref}}</ref> After Tron was defeated by Yuma, he released the souls of those he captured including those of his sons. Afterwards, III and his brothers awoke.<ref name="ep67">{{episode|Yu-Gi-Oh! ZEXAL|67|ref}}</ref>

| [[Yuma Tsukumo]] & [[Kite Tenjo]] || [[Yu-Gi-Oh! ZEXAL - Episode 042|42]]-[[Yu-Gi-Oh! ZEXAL - Episode 043|43]] || Lose (w/[[IVQuatro]])

* [[Number 32: Shark Drake]]<ref group=Notes name=No32>This card is received from [[V]] in [[Yu-Gi-Oh! ZEXAL - Episode 033|episode 33]], but is given to [[Reginald Kastle]] in [[Yu-Gi-Oh! ZEXAL - Episode 034|the next episode]]. It originally belonged to [[IVQuatro]].</ref>