The episode opens with the aftermath of the intense battle on Onigashima. Momonosuke, now in his adult human form, solemnly announces the deaths of Kaidou and Orochi, declaring himself the new Shogun of Wano. He pledges to bring a better life to the people of Wano, signaling a new era for the country.

Following this declaration, Momonosuke performs the ancient tradition of biting a giant tree man, symbolizing his acceptance of the Shogun role and the renewal of Wano's prosperity. This act is significant as it connects to the cultural heritage of Wano and the legacy of Oden, Momonosuke's father.

The scene then shifts to a celebratory banquet where the alliance of pirates, samurai, minks, and ninja gather to rejoice in their victory and the liberation of Wano. The atmosphere is festive, with characters expressing relief and hope for the future.

During the celebration, Nico Robin and Trafalgar Law take a side trip to the ruins of old Wano accompanied by Tenguyama Hitetsu. Tenguyama reveals his true identity as Sukiyaki, Oden's father and Momonosuke's grandfather, who has been hiding in shame for twenty years. They examine a Road Ponyglyph, confirming that the legendary weapon Pluton is housed in Wano, linking back to the Alabasta arc from decades ago.

Meanwhile, the arrival of Shanks and his Red Hair Pirates is announced, adding a new layer of tension and anticipation. Shortly after, a Navy Admiral named Ryokugyu appears during the celebrations, initiating a confrontation. Ryokugyu uses his Devil Fruit powers to manipulate nature, attacking several members of the Red Scabbards, who have resumed their role as protectors of Wano and the Shogun.

Momonosuke, in his dragon form, engages Ryokugyu by unleashing a powerful fire-breathing blast. He believes this attack forces the Admiral to retreat. However, it is later revealed that Shanks, by unsheathing his sword on a distant shore, uses his overwhelming Haki to overpower Ryokugyu, compelling the Admiral to flee. This moment underscores Shanks' formidable strength and influence.

The episode closes with the alliance solidifying their victory and the future of Wano looking hopeful under Momonosuke's leadership, while the presence of Shanks and the Navy Admiral hints at ongoing challenges ahead.

The ending of One Piece Season 21, Episode 1065 "The Destruction of the Alliance?! Fire up, the Will of the New Generation!" shows the collapse of the alliance formed to fight Kaidou and Big Mom, with key characters facing new challenges and the emergence of the new generation's will to carry on the fight. The episode sets the stage for future confrontations and highlights the shifting power dynamics after the major battles in Wano.

In a detailed narrative of the episode's ending:

The episode opens with Zoro and Brook aboard the Thousand Sunny, having decided to stay behind on a government-controlled island due to distrust of Vegapunk's evil aspect, Lilith. Their conversation is interrupted by Caribou, who reveals he has stowed away on the ship. Zoro acknowledges Caribou's presence but insists he leave, showing the tension and mistrust among the group even after the Wano battles.

Meanwhile, the alliance that fought against Kaidou and Big Mom begins to unravel. The episode's title, "The Destruction of the Alliance?!", reflects the fracturing of the coalition formed by pirates, samurai, minks, and ninja. The episode portrays the aftermath of the intense battles on Onigashima, with the alliance members dealing with the consequences of their fight and the loss of their common enemies.

Momonosuke, now in his adult human form, steps forward to announce the deaths of Kaidou and Orochi. He declares himself the new Shogun of Wano, promising a better future for the people. This moment is significant as it marks the restoration of the Kozuki family's legacy and the hope for Wano's renewal after years of oppression.

The episode transitions to a celebratory banquet where the survivors and allies gather. During this celebration, Nico Robin and Trafalgar Law visit the ruins of old Wano with Tenguyama Hitetsu, who reveals himself as Sukiyaki, Momonosuke's grandfather and Oden's father. They examine a Road Ponyglyph, confirming that the legendary weapon Pluton is hidden in Wano, linking back to earlier arcs and deepening the lore.

As the celebrations continue, the arrival of Shanks and his Red Hair Pirates is announced, along with a Navy Admiral, Ryokugyu. The Admiral uses his Devil Fruit powers to control nature and confront the Red Scabbards, who have resumed their role as protectors of Wano and Momonosuke. Momonosuke, in his dragon form, attacks the Admiral with a fire breath blast, believing he has driven him away. However, it is Shanks' Haki, unleashed from a distance by unsheathing his sword, that truly forces the Admiral to retreat, demonstrating Shanks' overwhelming power.

In a symbolic act, Momonosuke bites a giant tree man as his first official act as Shogun, following an ancient tradition. This gesture signifies his acceptance of leadership and the beginning of a new era for Wano.

Regarding the fate of main characters at the episode's end:

• Momonosuke assumes leadership as the new Shogun, embodying hope and renewal for Wano.
• Zoro and Brook remain on the government island, separated from the main group, highlighting ongoing tensions and unresolved issues.
• Nico Robin and Trafalgar Law continue their quest related to the Road Ponyglyphs, deepening the overarching plot.
• Shanks and his crew arrive, poised to influence upcoming events with their formidable presence.
• The Red Scabbards resume their protective duties, standing as guardians of Wano's future.
• Admiral Ryokugyu is repelled but remains a looming threat, indicating that the conflict is far from over.

This ending scene-by-scene narrative captures the transition from the climactic battles to the new political and power landscape in Wano, setting up future storylines while closing the chapter on the alliance's struggle against Kaidou and Orochi.

For One Piece, Season 21 (Wano Country Arc), Episode 1065 titled "The Destruction of the Alliance?! Fire up, the Will of the New Generation!" produced in 2023, there is no specific post-credit scene mentioned in the available detailed episode summaries or reviews. The episode focuses heavily on the ongoing battle dynamics, including Big Mom's attack on Kid and Law, and the intense confrontations on Onigashima, but no distinct post-credit or after-credits scene is noted in the sources covering this episode.

The closest related information about post-credit scenes in the Wano arc pertains to the final episode of the arc (episode 1085), which features an ending credit scene with a song and visuals, but this is much later than episode 1065. Additionally, some other One Piece episodes or seasons have included post-credit scenes (such as the introduction of Smoker in earlier arcs), but nothing specific is documented for episode 1065.

Therefore, episode 1065 does not have a post-credit scene to describe.

In episode 1065, Zoro and Brooke decide to stay behind on the Sunny because they don't trust Lilith, the evil aspect of Vegapunk. They discuss the danger of being on a government island and who will save the others if they get caught. Caribou then reveals himself, having snuck onto the Sunny inside a barrel, leading to a tense interaction with Zoro.

Episode 1065 confirms that Vegapunk reverse engineered the advanced technology seen, rather than inventing it from scratch. This ties into the larger plot involving Emu, who wanted to erase this technology from the world, making Vegapunk a liability that CP0 is ordered to eliminate.

CP0 agents are shown observing events and are given orders to take action against Luffy due to a secret related to his Devil Fruit power. Their involvement signals a high-level government interest in the conflict and the threat Luffy poses.

The episode outlines the potential catastrophic consequences if Onigashima is allowed to crash, as discussed by CP0 and the narrator. This sets up a critical tension point about the fate of the island and the alliance's efforts to prevent disaster.

Episode 1065 deepens the plot by showing the internal struggles within the alliance, the threat of government interference via CP0, and the technological mysteries surrounding Vegapunk. It also highlights character dynamics, such as Zoro's distrust and Caribou's opportunism, advancing the narrative toward the climax of the Wano Country Arc.

The episode "One Piece" Season 21, Episode 1065, titled "The Destruction of the Alliance?! Fire up, the Will of the New Generation!" is generally rated TV-14, indicating it is suitable for teens and older viewers but may not be fully family-friendly for younger children or very sensitive viewers.

Potentially objectionable or upsetting aspects include:

• Violence and Bloody Content: The episode contains sequences of violence and action typical of the series, including some graphic scenes such as characters being seriously injured or cut in a gruesome manner. This may be intense or disturbing for children or sensitive viewers.

• Suggestive Material: There is some suggestive content, though not explicit, which may be inappropriate for younger audiences.

• Moderate Alcohol and Smoking Depictions: Characters are frequently shown drinking alcohol and smoking cigarettes, which might be concerning for parents regarding younger viewers.

• Strong Language and Thematic Material: Some strong language and mature themes are present, including flashbacks involving trauma and tragedy, which could be upsetting.

Overall, while the episode is part of a popular shonen anime with adventurous and fantastical elements, it includes mature content that may not be suitable for young children or very sensitive individuals. Parents should consider these factors before allowing younger viewers to watch this episode.