Oshi no Ko Season 3 Episode 10 Sees Ruby Transform Into Ai as Quiet Tensions Boil Over

Oshi no Ko Season 3 Episode 10 aired on March 18, 2026, delivering a methodical yet emotionally charged installment that pushes the story closer to its climax. While the episode moved at a slower pace compared to previous weeks, every scene carried weight as characters made critical decisions about their futures. The most significant development came when Ruby Hoshino landed the role of her mother Ai in the upcoming biopic, but not in the way anyone expected.

This tenth episode of the season, available now on Crunchyroll and HIDIVE for viewers in the United States, Canada, United Kingdom, Australia, and New Zealand, focuses heavily on the psychological preparation for the film while revealing just how far Aqua is willing to go for revenge.

Ruby’s Audition Stuns Everyone With Disturbing Performance

The central event of Oshi no Ko Season 3 Episode 10 revolves around the internal auditions for Ai Hoshino’s role in the biopic. Frill Shiranui, who holds significant influence over the casting process, had already decided that Ruby should play Ai. The audition process was largely ceremonial, but what Ruby delivered during that audition changed everything.

Rather than simply imitating Ai’s mannerisms like Akane Kurokawa might have done with her analytical approach, Ruby tapped into something deeper and far more unsettling. She hinted at a darker, more intense personality that Ai might have shown the world if given the chance. The performance came across as genuinely disturbing, leaving even viewers feeling uncomfortable.

Ruby understood Ai on a level that no amount of research could replicate. By drawing from her memories of watching Ai as Sarina Tendouji in her previous life, combined with her current understanding as Ai’s daughter, she created a portrayal that felt authentic in ways that pure imitation could never achieve.

Aqua’s Descent Into Ruthlessness Reaches New Depths

While Ruby explored emotional depths in this episode, Aqua Hoshino showcased his transformation into something far more dangerous. His conversation with Akane sent chills through viewers as he coldly declared that nothing would stop him from achieving his revenge goals.

The most disturbing moment came when Aqua openly admitted to manipulating Kana Arima for his own purposes. He called her out for being gullible and easy to control, speaking about his emotional manipulation as if discussing simple logistics. Kana, as always, found herself caught in the emotional crossfire, unable to fully grasp just how calculated Aqua’s actions have become.

This marks a crucial turning point for Aqua. He understands exactly what he is doing and feels no regret. The revenge-driven mindset that has consumed him since childhood now controls every decision he makes. Viewers are left questioning just how far he will go before the story reaches its end.

The mysterious white-haired girl made another appearance in Oshi no Ko Season 3 Episode 10, approaching Aqua with cryptic guidance similar to what she has offered Ruby in previous episodes. Her supernatural presence continues to hover over the story like an observer watching from the shadows, possibly orchestrating events behind the scenes.

Post-Credit Scene Introduces Game-Changing Character

Oshi no Ko Season 3 Episode 10 delivered an extended climax leading into a devastating post-credit scene that could reshape everything. Throughout the episode, Ruby pushed herself to extreme limits preparing to portray Ai. She revisited memories from her past life as Sarina, systematically breaking herself down emotionally rather than building herself up through methodical preparation.

The post-credit scene introduced a character identified as Tendouji-san. For Ruby, this name carries enormous weight because in her previous life, this could be her mother. The introduction of this character at such a critical moment could either provide Ruby with the closure she never received or completely devastate her, potentially ruining her performance in the biopic.

This development adds another layer of complexity to an already tension-filled narrative. Ruby now faces not only the challenge of portraying her deceased mother but also the possibility of confronting figures from her past life while living as Ai’s daughter.

Release Information and Where to Watch

Oshi no Ko Season 3 Episode 10 released on Wednesday, March 18, 2026, following the established weekly schedule. New episodes arrive at 8:00 AM Pacific Time and 11:00 AM Eastern Time in North America.

Global audiences can access the episode through multiple platforms:

• Crunchyroll: Streaming in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, CIS countries, India, and Southeast Asia
• HIDIVE: Available in the United States, Canada, United Kingdom, Ireland, Australia, and New Zealand
• Amazon Prime Video: Accessible via the Crunchyroll or HIDIVE channels

The episode runs approximately 24 minutes with English subtitles available. An English dubbed version typically arrives a few weeks after the original Japanese broadcast.

The season will continue with Episode 11 scheduled for March 25, 2026, which is confirmed to be a one-hour special serving as the season finale.

Building Toward the Endgame

This episode makes clear that the story is moving deliberately toward its conclusion. The production of Ai’s biopic now has its lead actress, with Ruby’s terrifying understanding of her mother promising a performance unlike anything seen before in the series.

Aqua’s transformation into someone unrecognizable from the boy who once protected his sister adds tension to every scene he occupies. His willingness to sacrifice relationships and manipulate those closest to him suggests the revenge plot may cost him everything.

The continued appearances of the white-haired girl and now the introduction of Tendouji-san weave supernatural elements into the otherwise grounded entertainment industry drama. These mysterious figures may hold the keys to understanding both the past and the future for the Hoshino twins.

Oshi no Ko Season 3 Episode 10 proves that quiet episodes can carry as much weight as action-packed ones. Every conversation, every glance, every moment of silence builds toward something that promises to be explosive.

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