The episode begins with a dramatic scene in the Wano Country, where the tension is palpable as the alliance prepares for the impending battle against Kaido and the Beast Pirates. The atmosphere is charged with anticipation, and the characters are visibly anxious, knowing that the stakes are incredibly high. The scene shifts to the rooftop of Onigashima, where the battle between the Worst Generation and Kaido is about to unfold.

As the scene transitions, we see Luffy, Zoro, Kid, and Law standing together, ready to confront Kaido. They exchange determined glances, each of them fueled by their own motivations and the desire to protect their friends and achieve their dreams. The camera focuses on Luffy, who is filled with a fierce resolve, eager to take down the formidable Yonko. The tension escalates as Kaido makes his grand entrance, transforming into his massive dragon form, which casts a shadow over the battlefield.

Kaido unleashes a powerful attack known as Thunder Bagua, sending a shockwave through the air. The force of the attack is immense, and the ground trembles beneath the feet of the fighters. Luffy and the others brace themselves, showcasing their determination to withstand Kaido's overwhelming power. The scene is filled with chaos as the alliance members scramble to avoid the devastating attack, highlighting their agility and quick thinking.

In the midst of the chaos, we are introduced to Kaido's son, Yamato, who makes a striking appearance. Yamato is determined to fight alongside the alliance, revealing a strong desire to oppose his father's tyrannical rule. His entrance is marked by a fierce declaration of his intentions, and he quickly establishes himself as a formidable ally. The dynamic between Yamato and the other characters begins to unfold, as they recognize the potential strength he brings to their cause.

As the battle intensifies, Luffy and Kaido engage in a fierce confrontation. Luffy uses his Gear Fourth transformation, showcasing his incredible strength and speed. The clash between Luffy and Kaido is visually stunning, with powerful blows exchanged that shake the very foundations of Onigashima. Luffy's determination is palpable as he fights not just for himself, but for the future of Wano and his friends.

Meanwhile, the other members of the alliance, including Zoro and Kid, are also engaged in their own battles against Kaido's subordinates. Zoro displays his swordsmanship skills, cutting through enemies with precision, while Kid uses his magnetic powers to create chaos on the battlefield. The camaraderie among the alliance members is evident as they support each other, showcasing their teamwork and shared goal of defeating Kaido.

As the fight rages on, Kaido reveals his own formidable abilities, demonstrating why he is one of the most feared pirates in the world. He unleashes a series of devastating attacks, showcasing his brute strength and resilience. The stakes are raised as the alliance realizes they must work together to overcome Kaido's overwhelming power.

The episode culminates in a climactic moment where Luffy, fueled by his unwavering spirit, prepares to unleash a powerful attack against Kaido. The tension builds as the screen fades to black, leaving viewers on the edge of their seats, eager to see the outcome of this epic confrontation. The emotional weight of the battle is felt deeply, as each character's motivations and desires drive them forward in this pivotal moment of the Wano Country Arc.

In the ending of One Piece, Season 21, Episode 990, titled "Thunder Bagua! Here Comes Kaido's Son!", the episode culminates in a fierce confrontation as Luffy and his allies face off against Kaido's forces. The episode highlights the arrival of Kaido's son, Yamato, who reveals their desire to oppose their father and join Luffy in the fight for Wano's freedom. The episode ends with a sense of impending battle, setting the stage for the larger conflict to come.

As the episode begins, the scene opens in the midst of the chaotic battlefield of Onigashima. The air is thick with tension as the Straw Hat Pirates and their allies prepare for the confrontation against the Beast Pirates. The camera pans over the warriors, showcasing their determination and resolve, each one ready to fight for their beliefs and the future of Wano.

Suddenly, a powerful presence is felt as Kaido himself makes his entrance, towering over the battlefield. His imposing figure casts a shadow over the fighters, and the atmosphere shifts to one of dread and anticipation. The sound of thunder rumbles in the distance, foreshadowing the chaos that is about to unfold. Kaido's laughter echoes, instilling fear in the hearts of many, but also igniting a fire within Luffy and his crew.

As the battle begins, Luffy's fierce determination is palpable. He stands at the forefront, ready to confront Kaido, embodying the spirit of a true pirate who fights for his friends and the oppressed. The scene shifts to Yamato, who is revealed to be a striking figure with a strong will. Yamato expresses a deep desire to break free from Kaido's oppressive rule and aligns themselves with Luffy, showcasing a shared goal of liberation.

The tension escalates as Kaido unleashes his devastating Thunder Bagua attack, a display of raw power that sends shockwaves through the battlefield. The impact is visually stunning, with debris flying and warriors being thrown back. Luffy, undeterred, charges forward, fueled by his unwavering resolve to protect his friends and defeat Kaido.

In a pivotal moment, Yamato intervenes, demonstrating their strength and commitment to the fight. The clash between Yamato and Kaido is intense, revealing the complex relationship between parent and child. Yamato's internal struggle is evident, torn between loyalty to their father and the desire to forge their own path. This conflict adds depth to the character, showcasing the emotional stakes involved in the battle.

As the episode progresses, the focus shifts back to Luffy, who rallies his allies, igniting their spirits with his infectious enthusiasm. The camaraderie among the Straw Hats is highlighted, emphasizing their bond and shared purpose. Each character's motivations are clear; they fight not just for victory, but for the freedom of Wano and the hope of a brighter future.

The episode concludes with a powerful visual of Luffy and Yamato standing side by side, ready to face the overwhelming odds against them. The scene captures the essence of their alliance, symbolizing the unity of those who oppose tyranny. The final moments leave viewers with a sense of anticipation, as the stage is set for the epic battles to come, with the fate of Wano hanging in the balance.

In summary, the episode ends with Luffy and Yamato prepared to confront Kaido, embodying the spirit of rebellion against oppression. The emotional stakes are high, and the characters are poised for a monumental clash that will determine the future of Wano.

In episode 990 of One Piece, titled "Thunder Bagua! Here Comes Kaido's Son!", there is no post-credit scene. The episode concludes without any additional content after the credits roll. The focus remains on the intense developments within the Wano Country Arc, particularly highlighting the confrontation between the Straw Hat Pirates and the forces of Kaido, as well as the introduction of Kaido's son, Yamato. The episode emphasizes the escalating tension and stakes in the battle, leaving viewers eager for the next installment without any additional scenes to follow.

Kaido's son, Yamato, plays a crucial role in this episode as he reveals his desire to ally with the Straw Hat Pirates against his father, Kaido. His introduction adds depth to the conflict within Wano and showcases the internal struggles of characters tied to Kaido.

Luffy is initially surprised by Yamato's appearance but quickly becomes intrigued by his strong will and desire to fight against Kaido. Luffy's excitement reflects his own determination to take down powerful foes and protect his friends.

The Thunder Bagua is a powerful attack used by Kaido, which involves summoning a massive bolt of lightning to strike his enemies. In this episode, the technique is showcased during a tense battle scene, emphasizing Kaido's overwhelming strength and the danger he poses to the alliance.

Yamato struggles with his loyalty to his father, Kaido, and his desire to be free from his oppressive rule. This internal conflict is highlighted in his interactions with other characters, showcasing his longing for a different life and his admiration for Oden.

The Straw Hat crew and their allies express a mix of skepticism and hope upon learning about Yamato's intentions. Some are wary of his connection to Kaido, while others see the potential for a powerful ally in their fight against the tyrant.

In "One Piece" Season 21, Episode 990, titled "Thunder Bagua! Here Comes Kaido's Son!", there are several elements that may be considered objectionable or upsetting for children or sensitive viewers:

1. Violence: The episode features intense battles and combat scenes, including characters using weapons and engaging in physical confrontations, which may be graphic for younger audiences.

2. Character Threats: There are moments where characters threaten each other, showcasing aggressive behavior and intimidation, which could be unsettling.

3. Emotional Turmoil: Characters experience fear, anger, and desperation, which may evoke strong emotional responses and could be distressing for sensitive viewers.

4. Dark Themes: The overarching themes of power struggles, betrayal, and the harsh realities of the world can be heavy and may not be suitable for all children.

5. Mature Character Designs: Some characters have exaggerated features and designs that may be considered inappropriate or unsettling for younger viewers.

These elements contribute to a tone that may not be entirely family-friendly, depending on the viewer's age and sensitivity to such themes.