The episode begins with a flashback to twenty years ago in Wano Country, where Kozuki Oden is being executed. The scene is filled with tension as Oden, bound and surrounded by enemies, stands defiantly before his captors. He is determined to protect his people and his legacy. The execution is attended by the powerful Kaido and Orochi, who revel in their victory over Oden. As Oden is about to be boiled alive, he makes a final stand, urging his retainers, the Akazaya Nine, to escape and fulfill their promise to him.

The scene shifts to the present day, where the narrative reveals that the Akazaya Nine have successfully traveled twenty years into the future. They find themselves in a Wano that is vastly different from the one they left behind. The country is under the oppressive rule of Kaido and Orochi, and the people are suffering. The Akazaya Nine are filled with a mix of hope and despair as they realize the weight of their mission to liberate Wano.

As they regroup, the Akazaya Nine reflect on their past and the sacrifices made by Oden. Each member expresses their determination to honor Oden's legacy and to fight against the tyrants who have taken over their homeland. Kin'emon, the leader, emphasizes the importance of rallying the people and gathering allies to stand against Kaido and Orochi.

The narrative then shifts to the Flower Capital, where Orochi is celebrating his rule with a lavish festival. The contrast between the festivities and the suffering of the common people is stark. Orochi's arrogance is palpable as he boasts about his power and the control he has over Wano. Meanwhile, the Akazaya Nine are strategizing their next moves, discussing how to gather support and prepare for the inevitable confrontation with Kaido.

In a pivotal moment, the Akazaya Nine decide to split up to gather information and allies. They each take on specific missions, showcasing their individual skills and strengths. This decision highlights their commitment to the cause and their willingness to face danger for the sake of their homeland.

The episode culminates in a powerful scene where the Akazaya Nine, now in the present, prepare to confront their past and the challenges ahead. They are filled with a renewed sense of purpose, ready to reclaim Wano and honor Oden's memory. The emotional weight of their journey is evident as they vow to fight for their people and restore peace to their land. The episode ends on a cliffhanger, leaving viewers eager to see how the Akazaya Nine will execute their plans against Kaido and Orochi.

In the ending of One Piece, Season 21, Episode 976, titled "Back to the Present Day! 20 Years Later!", the story shifts back to the present day after a significant time skip. The episode reveals the current state of Wano Country, showcasing the changes that have occurred over the two decades. The Straw Hat Pirates, along with their allies, prepare to confront the oppressive regime of Kaido and Orochi. The episode concludes with a sense of hope and determination as the characters rally together to reclaim their homeland.

As the episode begins, the scene opens with a sweeping view of Wano Country, now vibrant and alive, contrasting sharply with the desolation seen in the past. The camera pans over lush landscapes and bustling towns, indicating the passage of time and the resilience of the people. The narration highlights the significance of the twenty-year gap, emphasizing the struggles endured by the citizens under the tyrannical rule of Kaido and Orochi.

We then transition to the characters who have been central to the story. Kin'emon, now older and more weathered, stands with his comrades, reflecting on their past and the sacrifices made. His eyes are filled with a mix of sorrow and determination as he recalls the fallen allies and the dreams they shared. The emotional weight of their journey is palpable, and Kin'emon's resolve to honor their memories fuels his desire to fight for a better future.

The scene shifts to the Straw Hat Pirates, who have returned to Wano after their adventures. Luffy, with his trademark enthusiasm, rallies his crew, reminding them of their shared goal to liberate Wano. His infectious spirit ignites a fire within his friends, each of whom is shown in moments of reflection and readiness. Zoro sharpens his sword, Sanji prepares food for the crew, and Nami studies maps of the region, each character displaying their unique strengths and contributions to the impending battle.

As the episode progresses, we see glimpses of the various factions within Wano. The samurai, led by Kin'emon, gather their forces, united in their desire to overthrow Kaido. The tension builds as they prepare for the confrontation, showcasing their loyalty and bravery. The emotional stakes are high, as each character is driven by personal motivations--revenge, justice, and the hope of a brighter future for their families and friends.

The climax of the episode arrives as the allied forces, including the Straw Hats and the samurai, stand together, ready to face their oppressors. The atmosphere is charged with anticipation, and the characters' expressions reflect a mix of fear and determination. They are aware of the challenges ahead but are united in their cause, embodying the spirit of camaraderie that has been a hallmark of the series.

In the final moments, the camera zooms out to capture the entire alliance, a formidable force against the backdrop of Wano's landscape. The episode closes with a powerful sense of hope, as the characters prepare to reclaim their homeland and fulfill their dreams. The fate of each main character is intertwined with the future of Wano, and their collective resolve sets the stage for the battles to come.

Overall, the ending of this episode encapsulates the themes of resilience, unity, and the enduring fight against tyranny, leaving viewers eager for the next chapter in the saga of One Piece.

In the episode "Back to the Present Day! 20 Years Later!" from the Wano Country Arc of One Piece, there is indeed a post-credit scene.

As the episode concludes, the scene shifts to a serene view of the Flower Capital, where the vibrant colors of the festival are in full swing. The camera pans over the bustling streets filled with joyful citizens celebrating, showcasing the lively atmosphere of the festival. Laughter and music fill the air, creating a sense of hope and renewal.

The focus then narrows to a group of familiar faces: the Straw Hat Pirates, who have returned to Wano after their long journey. Luffy, Zoro, Nami, and the others are seen enjoying the festivities, their expressions filled with joy and camaraderie. Luffy, in particular, is animated, his eyes sparkling with excitement as he devours a large piece of food, embodying his carefree spirit.

As the scene unfolds, the camera captures the interactions among the crew, highlighting their bonds and the growth they have experienced over the years. There is a palpable sense of relief and happiness, as they reflect on their past struggles and the bright future ahead. The scene serves as a poignant reminder of their resilience and the friendships that have been forged through adversity.

The post-credit scene encapsulates the themes of hope and unity that resonate throughout the Wano arc, leaving viewers with a sense of anticipation for the adventures that lie ahead for the Straw Hat Pirates.

In episode 976, the narrative shifts to 20 years after the events of the past, revealing the current state of Wano Country. The characters who were once children, like Momonosuke and Hiyori, have grown up, and the landscape of Wano has drastically changed under Kaido's oppressive rule. The episode showcases the struggles of the people and the lingering hope for liberation.

Momonosuke, now a young adult, is filled with a mix of determination and sorrow as he witnesses the suffering of his people. He feels the weight of his responsibilities as the heir to the Kozuki clan and is motivated to reclaim Wano from Kaido's tyranny, reflecting on the legacy of his parents and the sacrifices they made.

The Akazaya Nine, loyal retainers of the Kozuki family, play a crucial role in the episode as they prepare to fight against Kaido and his forces. Their resolve to honor their fallen leader, Oden, and their commitment to liberate Wano is highlighted, showcasing their emotional struggles and the burden of their past failures.

Hiyori's relationship with Zoro is portrayed with a sense of nostalgia and unspoken connection. As she reflects on her past encounters with Zoro, there is a deep emotional resonance, hinting at her admiration for him and the hope that he will help liberate Wano. This connection adds layers to Zoro's character as he remains unaware of her true identity.

The episode subtly references the significance of the 'D' in the context of the ongoing struggle in Wano. Characters reflect on the legacy of the 'Will of D' and how it ties into their fight against oppression. This theme serves as a reminder of the larger narrative at play in One Piece, connecting the past with the present and the hope for a brighter future.

In "One Piece" Season 21, Episode 976, titled "Back to the Present Day! 20 Years Later!", there are several elements that may be considered objectionable or upsetting for children or sensitive viewers:

1. Violence: The episode features scenes of combat and battles, which are common in the series. While not excessively graphic, the action can be intense and may include characters getting injured.

2. Death and Loss: The episode touches on themes of loss and the impact of time, including the emotional weight of characters reflecting on their past and the consequences of their struggles.

3. Emotional Distress: Characters experience significant emotional turmoil as they confront their pasts and the changes that have occurred over the years. This can evoke feelings of sadness or nostalgia.

4. Dark Themes: The overarching narrative includes themes of oppression, suffering, and the fight against tyranny, which may be heavy for younger viewers to fully grasp.

5. Mature Situations: There are references to betrayal and the harsh realities of the world, which may be unsettling for some viewers.

While the series is generally aimed at a younger audience, these elements may require parental guidance for younger children or sensitive viewers.