Changes

Trey and his brothers later revisited [[Heartland]] via a submarine and they discussed the ongoing war between the [[Astral World]] and the [[Barian World]]. Knowing that [[Astral]] was gone, Quinton told Trey he will entrust Yuma to him, which he said "Roger" with a salute and smile. Later that night, Trey appeared after Yuma refused to hand over his "[[Numbers]]" and lunged a sword at [[Mr. Heartland]], which the latter narrowly dodged with his teleportation abilities. Trey commended Yuma for standing his ground and proclaimed that he will protect him. He explained that he and his family had been investigating the Astral and Barian Worlds, and that they knew what happened to Astral. When Mr. Heartland assaulted him by shooting a swarm of insects from his staff, Trey blocked them with the abilities of a bracelet that Quinton invented, revealing that it granted him the abilities of his father's [[crest]]. Trey told Yuma that he knew he couldn't replace Astral, but asked if Yuma could let him help and risk his life fighting for him like Yuma had done for him in the past. Yuma then handed Trey "Number 6: Atlandis" and "Number 33: Machu Mech" and asked him to assist him in the upcoming Duel, which Trey happily agreed to. The pair then began their Duel with [[Semimaru]], but was put at an disadvantage when Mr. Heartland activated a trap that halved Trey's and Yuma's Life Points whilst Semimaru's doubled.<ref name="ep112"/> Trey took the third turn to summons summon out "Machu Mech" and deal damage to Semimaru with help from Yuma's cards. However, Semimaru deals dealt a lot of damage to Treywith "[[Number 3: Hell Cicada King - Locust King]]", who took with Trey taking damage that was meant for Yuma, and activates . Semimaru also activated a trap that will would assure him victory on his next turn. Yuma then sets set the stage for Trey to summon "Atlandis", equipped it with "Utopia" to win the duel, destroying Semimaru and returning Yuma's friends' memories. Afterwards, Yuma decides decided to give "Locust King" to Trey as a sign of their friendship.<ref name="ep113">{{episode|Yu-Gi-Oh! ZEXAL|113|ref}}</ref>

Trey spent the night over Yuma's house and borrowed his [[Heartland Academy]] uniform since he didn't have a change of clothes. In the morning, Trey happily ate breakfast with Yuma's family and [[Tori Meadows]]. When Yuma's mentioned Mr. Heartland's underlings, Trey told him he should tell [[Kite Tenjo|Kite]] and [[Reginald Kastle|Shark]] about them, but Yuma said the two are hard to contact. They decided to go visit [[Rio Kastle]] at hospital and caught [[Kurage]] poisoning her before he fled the scene. They frantically tried called to call Shark to warn him about Kurage when they met [[Quattro]] in the lobby. Trey asked his brother to deal with Kurage while they search searched for Shark around the city. Later, Trey and Yuma got a call from Quattro and arrived to his location to watch him and Shark Duel against Kurage.<ref name="ep114">{{episode|Yu-Gi-Oh! ZEXAL|114|ref}}</ref>