Gon climbs the world's tallest tree, and at the top he finds his father, Ging, whom he's been searching for all along. Gon wants to tell Ging all about his journey so far: about leaving his hometown of Whale Island to find him, about passing the rigorous Hunter Exam and becoming a Pro Hunter, and about all the precious friends he made along the way. Gon's first experience spending time with Ging as father and son awaits him.

The Chimera Ant Koala confesses his sins to a redheaded girl. When Koala finishes his confession, the girl quietly begins to talk. Meanwhile, Gon has discovered that Kite is actually still alive and goes to see him. What will Gon say when they finally meet?

Gon's recovery is celebrated by the Hunters assembled in the Association headquarters. And Gon finally meets his father Ging for the first time. The Ging from the photograph in Mito's house. The Ging that Satotz, Razor, and Kite spoke of. That Ging is now waving at Gon. Gon runs over to speak to Ging.

The election for chairman is now on its 8th vote. Beans releases the results of the vote which are displayed on the screen for everyone to see and there is quite a stir. The result is that Leorio is in 1st while Pariston is in 2nd. However, Leorio failed to secure 50% of the vote so there will be a final vote between the top two vote-getters. Meanwhile, back in Gon's hospital, Alluka wakes up after napping on Killua's lap. Killua makes his forbidden wish to Something.

After the 7th vote for the 13th Hunter Association Chairman, the remaining eight candidates are cut down to four for the next vote. After Ging's cryptic comment that the outcome is that there is no outcome, Cheadle asks him how to defeat Pariston. Ging's response is that Pariston doesn't want to win and doesn't want to lose, which is what makes him strong. What does he mean?

After the 5th vote for the 13th Hunter Association Chairman, it's determined that there will be a run off among the top eight vote-getters. Meanwhile, Hisoka is killing Hunters from the Seirin Group who seek to capture one of the Needlemen and discovers a map which marks where Killua's airship will land. Illumi has obtained the same map and is in hot pursuit while the butlers Tsubone and Amane are also following the airship.

As Goto and the other butlers assist Killua, they encounter Hisoka, who is helping Illumi to kill Alluka. Killua carries Alluka and runs through the forest towards Parasta, but he is followed by a shadowy figure...who turns out to be the butler Tsubone. After Killua puts on a burst of speed to shake Tsubone, she calls her granddaughter Amane who is also a butler and tells her to cut them off. Will Killua be able to reach Gon?

In the Hunter Association headquarters, the fourth vote to elect a chairman has just ended. Pariston finishes in first, with Cheadle in second and Leorio in third. However, the requirements still are not met, so another vote must be held. The fifth vote will be a runoff with the top 16 vote-getters...

The Hunter Association expert is unable to dispel the Restraint and Vow made by Gon. Killua ignores his family's objections and takes Alluka outside the house to save Gon. He is followed by multiple butlers, but Killua does not stop. Will Killua be able to bring Alluka to Gon and save him?

While Killua is reunited with his sibling Alluka, his older brother Illumi is seeking assistance from Hisoka and telling him the family secret regarding Alluka's power. This power has the potential to destroy the Zoldyck family. When three of Alluka's requests are fulfilled, Alluka will grant a wish.

The election for Chairman Netero's successor has begun. Hunters line up at the headquarters to cast their vote. The rules require that 95% of the 661 member Hunters participate, or the vote must be reheld. There is much confusion as the first and second votes fail to meet the requirement.

The leaders of the Hunter Association, the Zodiacs, have assembled. Gon's father Ging is one of the members. They discuss how they will carry out Netero's will and hold an election, but vice chairman Pariston quickly derails the conversation. Will the Zodiacs be able to reach a consensus?

With the death of King Meruem, the battle between humans and Chimera Ants comes to an end. The humans suffered great casualties, but they emerge victorious. Welfin, Brovada, Hina, Shidore, and the other Chimera Ants, some with memories of their previous lives and some without, choose to take different paths.

One word from Welfin is all it takes for Meruem to remember Komugi. Having moved underground, the King transforms his aura into particles to find where Palm is hiding. When the King declares that the battle is over and reveals his reason for coming to Palm, she is shocked.

King Meruem was able to recover from his near-death state after the Miniature Rose explosion. However, he cannot remember Komugi. At the same time, he realizes that Shaiapouf is hiding something from him.

Pouf is worried that Meruem will remember Komugi. However, he must carry out his duty and spread pollen to the remaining citizens, despite the decrease in his power after offering his own body to the King. Pouf soon realizes that Pitou has not returned. Pouf does not the resolution of the battle between Gon and Pitou.

The battle between Gon and Pitou is over. At the same time, Meruem, Youpi, and Pouf stand before the west tower. Pouf is very worried that Meruem will remember Komugi. As Meruem steps inside the west tower, he feels that something is missing.

Gon begs Pitou to heal Kite as tears streak down his face. Kite's still body lies in front of Pitou. Pitou uses Doctor Blythe to heal himself instead of Pitou. After confirming that the fingers on his left hand move, Pitou tells Gon that he must kill him. Gon is shocked and calls Pitou a liar as he is surrounded by aura. A sudden gust then blows out the candles in the room...

King Meruem returns to the palace with Youpi and Pouf to find hundreds of thousands of humans lined up for the selection. Knuckle is hiding inside the crowd with Melereon waiting nearby while Palm stands by behind the palace and Ikalgo waits above the hallway. All of them grow tense as the King returns. Meanwhile, Pouf's clones are searching for the Gungi board and pieces which will trigger the return of the King's memories so he can hide them. At the same time, Gon and Pitou head to the hiding place in Peijing to heal Kite.

The resurrected King calls himself Meruem and appears to have lost some of his memories. With Shaiapouf and Menthuthuyoupi by his side, he returns to the palace to regain his memories. Pouf believes that as a Royal Guard who must carry out the will of the Queen, the King is better off not remember Komugi, so he sends his clones back to the palace to find Komugi and eliminate her. He soon comes across Killua standing on the wall of the palace with Komugi on his back.