What is the plot?

The episode "One Galaxy," episode 90 of Yu-Gi-Oh! GO RUSH!! Season 1, begins with the revelation that Yudias possesses the Milky Way galaxy within him, a fact central to the antagonist Kuaidul's plan. Kuaidul intends to fuse his own Andromeda galaxy with Yudias's Milky Way galaxy, mirroring the distant future cosmic event where these two galaxies are expected to collide.

The episode opens with the intense duel between Yudias and Kuaidul reaching its climax. Kuaidul, driven by desperation, attempts to forcibly merge his galaxy with Yudias's by invading Yudias's body. This is a critical moment where Kuaidul tries to take over Yudias completely, aiming to extend his own lifespan and power by absorbing the Milky Way galaxy.

Instead of resisting, Yudias makes a pivotal decision: he allows Kuaidul to enter his body willingly. This act is motivated by Yudias's empathy and understanding of Kuaidul's deteriorating condition--the core of Kuaidul's galaxy is breaking down, and he needs to understand the meaning of Rush Duels before his time runs out.

As Kuaidul merges with Yudias, the internal struggle unfolds. Yudias does not fight back but instead tries to save Kuaidul, showing compassion despite their conflict. This emotional and physical confrontation reveals Kuaidul's tragic backstory and his motivations, deepening the narrative tension.

Eventually, Kuaidul changes his mind about the takeover. He decides to leave Yudias's body and disappear rather than continue the forced fusion. This departure leaves Yudias feeling remorseful for being unable to save Kuaidul fully, highlighting the complex relationship between the two characters.

Parallel to this, there is a subplot involving the Galaxy Cup prize. Nomura, a member of the assembled crowd, expresses skepticism about the prize being the complete set of Mr. Universe cards. However, Phaser, Asaka, and Yuna assure him that they would never offer such a prize, which excites Nomura as he anticipates a prize that everyone would be happy to receive. This subplot adds a lighter tone amid the intense duel and sets up future developments related to the Galaxy Cup.

The episode concludes with the duel ending and the seventh arc wrapping up. The resolution of the duel and Kuaidul's fate set the stage for the next season, where the threat of the Vulgarian extinction looms. The episode emphasizes the cosmic scale of the conflict, linking the characters' struggles to the real astronomical event of the Milky Way and Andromeda galaxies' eventual collision.

Throughout the episode, the duel sequences are detailed, showing the strategic plays and card summons that reflect the characters' emotional states and decisions. Yudias's acceptance of Kuaidul's invasion and his subsequent mercy are key turning points that drive the story forward and conclude the arc with a mix of resolution and open-ended tension.

No other major confrontations or escapes occur in this episode, as the focus remains on the duel's climax, the fusion attempt, and the emotional resolution between Yudias and Kuaidul. The episode balances action with character development, providing a thorough conclusion to the arc while leaving narrative threads for future episodes.

What is the ending?

Yudias and Kuaidul duel in a final clash that determines the fate of the galaxy. After a long and intense battle, Yudias wins, but Kuaidul is not destroyed. Instead, Kuaidul's spirit is freed, and he and Yudias reconcile. The galaxy is saved, and peace returns. Years later, Yui and Yumu visit a memorial and learn that Yudias fulfilled his promise to protect them. They find a shop run by Yudias, who is alive again, and the twins reunite with him.


The episode opens with the final duel between Yudias and Kuaidul, two warriors whose destinies have been intertwined for centuries. The battlefield is a vast, cosmic arena, glowing with the energy of their Galaxy Monsters. The duel is fierce, with both sides summoning powerful monsters and unleashing devastating attacks. Yudias, representing the Milky Way Galaxy, faces Kuaidul, who embodies the Andromeda Galaxy. Their duel is not just a battle of strength, but a clash of ideologies and histories, each carrying the weight of their respective galaxies.

As the duel progresses, Kuaidul reveals his true motivation: he sought to merge with Yudias not out of pure malice, but because he believed it was the only way to ensure the survival of his people. He explains that the Andromeda Galaxy is destined to collide with the Milky Way, and he wanted to prevent the destruction by merging their powers. Yudias listens, understanding Kuaidul's pain and desperation. Despite everything, Yudias refuses to let Kuaidul take over his body, but he does not seek to destroy him either.

In the climax of the duel, Yudias uses his final move to defeat Kuaidul, but instead of erasing him, he releases Kuaidul's spirit. Kuaidul's form dissolves into light, and he thanks Yudias for understanding him. The two galaxies, once destined to collide, now exist in harmony. The cosmic arena fades, and peace returns to the galaxy.

The scene shifts to Earth, many years later. Yui and Yumu, now grown, visit a memorial dedicated to the heroes of the past. They read the inscription and see that Yudias is named as the one who protected them and prevented the invasion. They learn that Yudias kept his promise to them, enduring for centuries to ensure their safety. The twins are filled with gratitude and emotion.

They walk down to a small shop, where they see a familiar face behind the counter. It is Yudias, in his paper form, a state where he is not fully alive but still present. The twins approach him, and Yudias transforms back into his whole, living self. The reunion is heartfelt, with Yui and Yumu expressing their joy at seeing him again. Yudias smiles, his promise finally fulfilled.

The episode ends with Yudias, Yui, and Yumu together, symbolizing the enduring bond between them and the peace that has been achieved. The fate of each main character is clear: Yudias is alive and reunited with the twins, Kuaidul's spirit is at peace, and the galaxy is safe from the threat of invasion. The story emphasizes themes of sacrifice, understanding, and the power of promises kept.

Is there a post-credit scene?

The episode 90 of Yu-Gi-Oh! GO RUSH!! titled "One Galaxy" does not have any confirmed post-credit scene. The available reviews and summaries of this episode, which is the finale of the seventh arc, focus on the main duel and its emotional resolution without mentioning any post-credit content or additional scenes after the credits.

The episode concludes with the duel between Yudias and Kuaidul reaching its climax and resolution, highlighting themes of sacrifice and reconciliation, but no sources or video previews indicate a post-credit scene or extra footage following the episode's end.

Therefore, based on the current information from episode reviews, previews, and official summaries, there is no post-credit scene in Yu-Gi-Oh! GO RUSH!! Season 1, Episode 90 "One Galaxy."

What is the significance of the duel between Yudias and Kuaidul in episode 90?

The duel between Yudias and Kuaidul in episode 90 is the climax of the seventh arc, where Kuaidul attempts to merge his Galaxy with Yudias's to extend his lifespan and take over Yudias's body. This duel reveals Kuaidul's true intentions and backstory, including his origin from the Andromeda galaxy, contrasting with Yudias's Milky Way origin. The duel ends with Kuaidul's defeat and death, which heightens the stakes for the next season by showing that Vulgarian villains can truly die, making the threat more palpable.

How does the merging of galaxies relate to the characters Yudias and Kuaidul?

Kuaidul, based on the Andromeda galaxy, tries to merge his Galaxy with Yudias's Milky Way galaxy to extend his life and take over Yudias's body. This merging symbolizes the conflict between the two characters and their respective origins. The real-life astronomical fact that the Andromeda and Milky Way galaxies will collide far in the future is referenced metaphorically in their duel and storyline.

What new cards or abilities are introduced in episode 90 that impact the duel?

Episode 90 features new cards with unique effects, such as one that allows a monster's attacks to pierce and causes both players to send cards from their decks to the graveyard, potentially gaining control of an opponent's monster if certain conditions are met. These cards reflect the evolving strategies in the duel and the merging of different 'worlds' or playstyles, paralleling the narrative themes of unification and conflict.

What emotional or psychological states do Yudias and Kuaidul experience during their final duel?

During the final duel, Yudias shows a willingness to let Kuaidul overwhelm him and take over his body, indicating a deep understanding and empathy for Kuaidul's motivations despite their conflict. Kuaidul's desperation to extend his lifespan and merge galaxies reveals his tragic nature. This emotional complexity adds depth to their characters and the stakes of the duel.

How does episode 90 set up the narrative direction for the next season?

The death of Kuaidul in episode 90 establishes that Vulgarian villains can truly die, raising the stakes for future conflicts. The merging of galaxies and the unresolved consequences of the duel suggest a 'sad Yudias' arc beginning, indicating that the next season will explore the aftermath of this duel and the continuing threat to Yudias and his world.

Is this family friendly?

Yu-Gi-Oh! GO RUSH!!, including Season 1 Episode 90 titled "One Galaxy," is generally rated PG-13, meaning it is intended for teens 13 years and older and may not be fully suitable for younger children.

Potentially objectionable or upsetting aspects for children or sensitive viewers may include:

  • Violence & Intense Scenes: The show features duels and battles that can involve dramatic confrontations and some intense moments, which might be frightening or stressful for sensitive viewers.
  • Mild Profanity: Some mild language may be present, typical of PG-13 content.
  • No explicit sexual content or nudity is indicated for this episode or the series overall.
  • No significant depiction of alcohol, drugs, or smoking is noted.

Overall, the content is family-friendly for teenagers but younger children or very sensitive viewers might find some battle scenes or dramatic tension unsettling. There are no major adult themes or graphic content in episode 90 specifically.