Recaps

Hades revealed that Gildarts had survived an encounter with Acnologia, prompting Zancrow to expect him to defeat Bai Yu. Instead, Gildarts let Bai Yu pass the third checkpoint, leaving Zancrow furious that their wait to see Bai Yu challenged had come to nothing.

• Ultear confirmed news that Gildarts had fought Bai Yu, and Zancrow expected Gildarts to prove stronger than him.
• Hades explained that Gildarts had survived an encounter with Acnologia during a 100-Year Quest and said he believed Gildarts would win if they fought.
• Bai Yu woke Gildarts at the third checkpoint, where Gildarts demanded to be called father-in-law before letting him pass.
• Gildarts warned Bai Yu that Makarov was preparing a tough challenge at the fourth checkpoint, and Bai Yu continued toward Tenrou Island.
• Hades and Zancrow watched Gildarts let Bai Yu pass without a fight, and Zancrow roared that he would kill Bai Yu.

Hades and the Seven Kin of Purgatory watched Makarov confront Bai Yu, hoping the fight would reveal Bai Yu’s abilities. Makarov’s strongest attack failed to reach Bai Yu, and he awarded him the Mark of Light after declaring him an S-Class Mage.

• Hades stopped Zancrow from attacking Bai Yu so they could observe Makarov’s confrontation with him.
• Makarov transformed into a giant and charged at Bai Yu with Giant’s Spear.
• Makarov’s fist struck Bai Yu’s face, but Bai Yu remained motionless and an unseen force sent Makarov flying into the Tenrou Tree.
• Makarov returned to his small form, gave Bai Yu the Mark of Light, and confirmed that he had passed the S-Class Mage examination.

Grimoire Heart revealed its airship and prepared to attack Fairy Tail, while Ultear warned that Acnologia might arrive. Bai Yu confirmed he was waiting for Acnologia, and Doranbalt reported that the dragon was coming to destroy Ishgar for the Dragon-Slaying Mage.

• Zancrow lost control and broke Hades’s disguise spell, exposing Grimoire Heart’s airship to Makarov and Fairy Tail.
• Hades ordered Grimoire Heart to attack Fairy Tail and target Bai Yu first.
• Ultear warned Hades and the others to beware of Acnologia, but Zancrow dismissed the warning as a trick.
• Bai Yu announced that he was waiting for Acnologia, and Makarov trusted that he had a reason to say so.
• Doranbalt reported that the Magic Council had received an urgent warning that Acnologia was coming to destroy Ishgar for the Dragon-Slaying Mage.
• Zancrow accused Bai Yu of trying to scare Grimoire Heart and insisted that Hades had already received the same warning.

Makarov confronted Hades, the former Fairy Tail master Precht, who revealed he had always been in darkness and challenged the guild to trust Bai Yu’s prediction. Acnologia appeared over Tenrou Island and charged Grimoire Heart’s airship, leaving Hades scrambling to raise a barrier.

• Bai Yu explained that Precht had founded Grimoire Heart after leaving Fairy Tail and gained immortality through the Demon Eye.
• Hades told Makarov he had always been in darkness and demanded that Fairy Tail deny Bai Yu’s prediction about Acnologia.
• Makarov, Lucy, and the others declared that they believed Bai Yu, enraging Hades.
• Doranbalt’s magic bracelet alarmed as Acnologia approached, then shattered when the dragon’s presence overwhelmed its display.
• Acnologia tore through the clouds and charged Grimoire Heart’s airship, prompting Hades to activate its magic barrier.

Acnologia destroyed Grimoire Heart’s airship, forcing Hades to emerge as Makarov prepared to fight his former mentor. Bai Yu insisted he could handle Grimoire Heart alone while Makarov and the others went to hold off Acnologia, leaving the two sides facing each other beneath the Tenrou Tree.

• Acnologia smashed through Grimoire Heart’s airship, and Hades barely stopped it from crashing after its barrier shattered.
• Makarov warned Bai Yu that Hades would exploit Acnologia’s arrival to attack Fairy Tail and offered to fight Grimoire Heart himself.
• Hades mocked Makarov, revealed his belief that Fairy Tail’s compassion had kept the guild weak, and boasted about the champions he had gathered.
• Bai Yu told Makarov to hold off Acnologia while he dealt with Grimoire Heart alone.
• Makarov trusted Bai Yu and led Erza and the others away, leaving Bai Yu facing Grimoire Heart beneath the Tenrou Tree.

Bai Yu used the Domain of God and Sky-Rending Slash to grievously wound Hades and Grimoire Heart’s members while sparing Ultear and Jellal. He announced that he would deal with Acnologia, then touched the head of Mavis, Zeref’s wife, whom only Hades recognized.

• Hades threatened Bai Yu and gave him a minute to say his last words.
• Bai Yu unleashed the Domain of God and used Sky-Rending Slash, cutting through the forest and wounding Hades, Zancrow, and the other Seven Kin of Purgatory.
• Ultear and Jellal discovered they were unharmed, and Bai Yu said he had spared them because Ultear delivered his message.
• Bai Yu told Ultear and Jellal to leave and said he would deal with Acnologia.
• Bai Yu rubbed the head of an unseen figure, and Hades recognized her as Mavis, Zeref’s wife.

Bai Yu set out to face Black Dragon King Acnologia while Mavis followed, and Makarov confronted the dragon using the Armament Haki Bai Yu had taught him. Makarov’s fierce counterattack left the Fairy Tail wizards stunned as Gildarts explained the technique.

• Mavis was shocked that Bai Yu could see her, then followed him as he headed toward the shore to face Acnologia.
• Makarov intercepted Acnologia, endured his Dragon Breath with Full-Body Armament Haki, and seized him by the neck.
• Makarov suplexed Acnologia into the ground and pummeled him with a barrage of Haki-coated punches.
• Laxus asked Gildarts how Makarov had become so powerful, and Gildarts explained that Bai Yu had taught him to use qi as armor.

Black Dragon King Acnologia unleashed devastating attacks against Makarov and the others on Tenrou Island, but Erza used Bai Yu’s Mark 50 to help stop him. As Acnologia’s energy ball overwhelmed their defense, Tornado intervened and flung it into the sky, saying no one could die before Bai Yu arrived.

• Black Dragon King Acnologia’s Darkness Wave blasted Makarov into a cliff while Erza and the others intercepted the shock wave.
• Acnologia fired a massive Black Light Wave at Makarov, and Erza activated the Mark 50 to shield him as Makarov, Laxus, and the others joined in.
• Acnologia added Dragon Breath to his attack, forcing the energy ball through Erza and the others’ defenses.
• Tornado unleashed her psychic power, hurled the energy ball into the sky, and told Acnologia that no one could die before Bai Yu arrived.

Tornado destroyed Acnologia’s attack and revealed that she came from another world, while Bai Yu announced that he and Tornado had come to target the Black Dragon King. Bai Yu struck Acnologia with his sheathed sword, leaving his scales cracked and his body bleeding as he began to draw his blade.

• Tornado effortlessly drew Acnologia’s attack into the sky and destroyed it, stunning everyone on the battlefield.
• Tornado told Hades and the others that she was Bai Yu’s fiancée from another world and called Acnologia a thick-skinned reptile.
• Bai Yu approached Erza and the others, confirmed that he and Tornado came from other worlds, and gave Acnologia a choice between being slashed or captured and slashed.
• Bai Yu released divine power and used Sky-Rending Slash, injuring Acnologia before drawing his sword and cracking his scales.

Bai Yu wounded Acnologia with a lightning-fast slash, then summoned a sky full of golden blades and unleashed Myriad Swords Return to the Origin, defeating him. The system announced that Bai Yu would return to the Sea King World in five minutes, and Tornado asked whether he was leaving.

• Bai Yu struck Acnologia with a slash that tore across the ground and sea, leaving a deep wound in the Black Dragon King’s body.
• Acnologia fled into the sky, but Bai Yu summoned thousands of golden blades and sent them surging after him with Myriad Swords Return to the Origin.
• Acnologia disappeared in the dazzling blast, while Hades and the others stayed frozen in fear of Bai Yu.
• The system announced that Bai Yu had defeated Acnologia, completed the nightmare-level dungeon, and would return to the Sea King World in five minutes; it also awarded him a god-tier blind box.
• Tornado descended and asked Bai Yu whether he was leaving.

Bai Yu returned to the Sea King World with Tornado and discovered that the enemy had apparently wiped out all signs of life. After opening the God-Level Blind Box and gaining the Jōgan, he located the battlefield and rushed to Marineford, where monstrous roots and jaws were ravaging the ruins.

• Bai Yu said goodbye to Erza, Mira, Lucy, Lisanna, Juvia, and the others before he and Tornado returned to the Sea King World.
• Bai Yu and Tornado found themselves over an empty stretch of sea and concluded that the enemy had launched an all-out attack.
• Bai Yu opened the God-Level Blind Box and received the Jōgan, whose powers flooded into his mind.
• Bai Yu used the Jōgan to locate the battlefield, then traveled with Tornado and thousands of golden swords toward Marineford.
• At the ruined Marineford, thick roots burst through the ground and fanged maws began tearing at everything around them.

Bai Yu returned to Marineford and defeated Ōtsutsuki Imu, sealing her inside a growing sphere of rock sent into the sky. After completing the Sea King World mission, he received the Gate of Wishes and wondered if it could take him back to his original world.

• Garp and Sengoku attacked the giant tree with Thunder Daytime Tigers while Whitebeard and Red-Haired Shanks prepared to endure its counterattack.
• Bai Yu returned and redirected the Thunder Daytime Tigers behind the tree, then pinned Ōtsutsuki Imu with a rain of golden blades.
• Ōtsutsuki Imu recognized the Jōgan in Bai Yu's eyes and tried to devour life force to strengthen herself.
• Bai Yu cleaved Ōtsutsuki Imu in two with Golden Wheel Reincarnation Explosion and trapped her inside a massive sphere using Six Paths: Chibaku Tensei.
• Bai Yu completed the Sea King World mission, received the Gate of Wishes, and wondered whether it could return him to his original world.