Oshi no Ko Season 3

Introduction to Oshi no Ko Season 3

Oshi no Ko Season 3 takes the story into a new stage of the entertainment industry while continuing the personal journeys of Aqua, Ruby, Kana, Akane and MEM-cho.

The third season began broadcasting in Japan on January 14, 2026, continuing the anime’s story with a new combination of entertainment projects, personal conflicts, relationships and the mystery surrounding Ai and Goro’s deaths.

The official Season 3 story introduction explains that six months have passed since the release of B-Komachi’s “POP IN 2”. MEM-cho’s efforts have helped the group move toward a major breakthrough, while Aqua continues working as a multi-talented entertainer and Akane progresses as an actress.

At the same time, Ruby becomes increasingly determined to uncover the truth behind the deaths of Ai and Goro.

Aqua Hoshino Returns

Aqua remains one of the central characters of Season 3.

His journey is still connected to the mystery surrounding Ai and the death of his previous-life identity, Goro Amamiya.

Aqua’s career has also become increasingly complicated. Rather than simply investigating the past, he must continue navigating acting, entertainment projects and relationships with other people in the industry.

His professional life and personal investigation continue to overlap, making his decisions increasingly difficult.

Ruby Hoshino and Her New Ambition

Ruby’s development becomes especially important in Season 3.

She continues building her career as an idol while simultaneously searching for information connected to Ai and Goro.

Ruby’s public image and private motivations increasingly exist side by side.

The official Season 3 introduction describes her as determined to climb through the entertainment industry while searching for the truth.

Kana Arima and a Difficult Period

Kana’s situation changes significantly during the third season.

The official story introduction specifically notes that she is no longer as cheerful as she once was.

Her professional ambitions, personal relationships and emotional struggles become important parts of the season.

Kana’s storyline demonstrates how difficult the entertainment industry can become even for someone with considerable talent and experience.

Akane Kurokawa

Akane continues developing her career as a serious actress.

Her analytical personality and ability to understand other people remain important parts of her character.

Her relationship with Aqua also remains one of the complicated emotional elements of the series.

MEM-cho and B-Komachi

MEM-cho continues playing an important role in B-Komachi’s growth.

Her experience with social media and entertainment helps the group expand its presence.

B-Komachi’s progress also creates new opportunities and new pressures for Ruby and the other members.

B-Komachi After POP IN 2

Six months after the release of “POP IN 2”, B-Komachi is moving toward a larger position within the entertainment industry.

Their growing popularity changes the way the members are treated and increases the number of professional opportunities available to them.

However, greater visibility also means that personal problems can become public very quickly.

The Entertainment Industry

Oshi no Ko has always used the entertainment industry as more than a background setting.

Season 3 continues exploring auditions, acting, idol activities, advertising, public image and the pressure of maintaining a career.

The characters frequently have to separate their private feelings from the personalities they present publicly.

The Meaning of a Public Image

One of the recurring ideas in Oshi no Ko is that celebrities can be perceived very differently from who they actually are.

Season 3 continues this idea through Aqua, Ruby, Kana, Akane and the members of B-Komachi.

Their public identities can help their careers while also creating additional emotional pressure.

Ruby’s Search for the Truth

Ruby’s investigation into the past becomes increasingly important.

Her motivation is deeply connected to her previous life as Sarina Tendouji and her memories surrounding Goro.

Instead of simply accepting the entertainment world as her new life, Ruby uses her growing position to search for answers.

Aqua and the Movie Project

Aqua’s work also moves toward a project connected to the past.

The later episodes of Season 3 increasingly connect the entertainment business with the hidden history behind Ai and Goro.

The official Episode 34 synopsis specifically describes Aqua informing Ruby about the contents of the movie he is attempting to make.

The Scandal Arc

Season 3 also explores the consequences of celebrity rumors and scandals.

Kana becomes caught in a situation where photographic evidence creates a damaging public impression even though the actual circumstances are more complicated.

The official Episode 30 synopsis describes Kana being photographed entering and leaving an office on an island. Although she has done nothing wrong, the circumstantial evidence creates a serious problem for her.

Kana and the Pressure of Rumors

Kana’s storyline demonstrates how quickly a celebrity’s public image can change.

Her emotional reaction also reveals the difference between performing confidently in front of an audience and dealing privately with fear and uncertainty.

Ruby and Acting

Ruby’s career is not limited to idol activities.

Season 3 increasingly asks her to approach acting and performance in different ways.

The official Episode 34 synopsis focuses on Ruby’s performance of “Ruby Hoshino” and “Sarina Tendouji”, asking what it means for her to perform the role of a liar.

The Difference Between Ruby and Sarina

Ruby carries memories from her previous life, meaning that her identity is more complicated than her public career suggests.

Her experiences as Sarina continue influencing the way she thinks about Ai, Goro, Aqua and her own ambitions.

Ai Hoshino’s Continuing Influence

Even though Ai is no longer present in the present-day story, her influence remains everywhere.

Aqua’s investigation, Ruby’s memories, B-Komachi’s identity and the entertainment industry all remain connected to her legacy.

Season 3 continues showing how one person’s past can influence the lives of many different characters.

Goro Amamiya and the Mystery

Goro remains an essential part of Aqua’s identity.

The mystery surrounding Goro’s death is not separate from Aqua’s current life. It continues influencing his relationships and choices.

The Emotional Side of Aqua

Aqua often appears calm and analytical, but Season 3 continues exploring the emotional consequences of his past.

His relationships with Ruby, Kana and Akane reveal different sides of his personality.

The closer Aqua gets to the truth, the more difficult it becomes to separate his investigation from his personal feelings.

The Relationship Between Aqua and Ruby

Aqua and Ruby’s relationship remains unusual because both siblings carry memories from previous lives.

Their shared history creates a bond that other characters cannot fully understand.

Season 3 places increasing importance on what happens when their individual goals begin moving in different directions.

Kana and Aqua

Kana’s relationship with Aqua continues to affect both characters.

Professional opportunities and personal feelings often overlap, making their interactions difficult to interpret.

Season 3 uses their relationship to explore the difference between friendship, attraction and professional partnership.

Akane and Aqua

Akane approaches Aqua differently because of her ability to analyze people and understand their behavior.

Their relationship remains complicated by the secrets Aqua continues carrying.

Frill Shiranui

Frill Shiranui continues representing another side of the entertainment industry.

Her presence helps show how different performers can have very different careers and public identities.

Minami Kotobuki

Minami is another character connected to Ruby’s wider entertainment environment.

Supporting characters like Minami help make the entertainment world feel larger than just B-Komachi.

The Visual Style of Season 3

The visual identity of Season 3 continues the colorful entertainment aesthetic of Oshi no Ko while using darker lighting and more dramatic compositions when the story becomes serious.

Bright idol performances contrast with quiet scenes involving the characters’ personal struggles.

Animation by Doga Kobo

Doga Kobo continues as the animation production studio for Season 3.

The official staff page lists Daisuke Hiramaki as director, Jin Tanaka as series composer, and Kanna Hirayama as character designer.

The animation team also includes several chief animation directors and key staff members responsible for maintaining the visual quality of the series.

Music by Taku Iga

Taku Iga continues providing the music for Oshi no Ko Season 3.

The music supports the contrast between bright entertainment scenes and the darker mystery surrounding Aqua and Ruby.

Season 3 Opening Theme

The Season 3 opening theme is “TEST ME” performed by Chanmina.

The official anime website announced Chanmina as the Season 3 opening theme artist before the season premiered.

Season 3 Ending Theme

The Season 3 ending theme is “Serenade” performed by natori.

The ending song was officially announced alongside the Season 3 broadcast and promotional material.

The Role of Lies

Lies remain one of the most important themes in Oshi no Ko.

Celebrities create public images, actors perform characters and individuals sometimes hide their true feelings to protect themselves or others.

Season 3 continues examining whether a lie is always harmful or whether it can sometimes become a tool for survival and self-expression.

Truth Versus Performance

The entertainment industry naturally requires performance.

Actors become different characters, idols create public personas and celebrities must carefully manage their image.

Oshi no Ko uses these professional performances to explore the difference between what audiences see and what characters actually experience.

The Dark Side of Fame

Fame creates opportunities, but it can also make private problems public.

Season 3 demonstrates this through rumors, relationships, professional pressure and the constant attention surrounding performers.

Romance and Entertainment

Romance in Oshi no Ko is rarely separated from the characters’ careers.

Aqua, Kana and Akane have personal feelings that exist alongside professional relationships.

This makes their interactions more complicated than a conventional romance story.

The Mystery Continues

Even while the characters become more successful, the central mystery does not disappear.

Aqua and Ruby continue discovering information that changes their understanding of the past.

Season 3 therefore works both as an entertainment-industry drama and as another chapter in the larger mystery.

Episode 25 and the New Stage

The season begins with the story moving into a new stage.

The characters have already achieved more recognition than before, but their new positions create new problems.

Episode 30 — Idol and Romance

Episode 30 focuses strongly on Kana and the consequences of being seen in circumstances that can be interpreted incorrectly.

The episode demonstrates how quickly an entertainment story can become a public-relations crisis.

Episode 31 — The Break

Episode 31 continues the emotional and professional consequences of the events surrounding the characters.

The official episode material identifies the episode as “Ketsuretsu”, meaning a separation or rupture.

Episode 34 — Individual Audition

Episode 34 focuses on Ruby’s acting and her understanding of the characters she has been portraying.

The official synopsis specifically asks what Ruby’s performance means when she has lived as both Ruby Hoshino and Sarina Tendouji.

Episode 35 — The Beginning

The Season 3 finale is Episode 35 and was broadcast as a one-hour special.

The official synopsis reveals that Aqua unexpectedly reunites with Marina Tendouji, Sarina’s mother.

Meanwhile, Ruby continues intensive acting practice while balancing a demanding schedule.

The episode brings several emotional storylines together before the next stage of the anime.

Season 4 Final Season

The official anime website announced production of Oshi no Ko Season 4 Final Season on March 26, 2026.

This means Season 3 is not the end of the animated story.

Why Season 3 Matters

Season 3 is important because the characters are no longer simply entering the entertainment industry.

Aqua, Ruby, Kana, Akane and MEM-cho have established careers and now face more complicated professional and personal situations.

The mystery surrounding Ai and Goro also moves closer to the center of their present lives.

Character Development

One of the strongest elements of Season 3 is its focus on character development.

Ruby becomes more determined, Aqua faces new emotional complications, Kana struggles with public pressure, and Akane continues developing as an actress.

These changes make the characters feel different from their earlier versions without abandoning their established personalities.

Oshi no Ko’s Combination of Genres

Oshi no Ko continues to combine several genres at once.

It contains idol elements, mystery, drama, romance, psychological themes and entertainment-industry commentary.

Season 3 keeps this combination while moving the characters into more mature situations.

The Importance of Supporting Characters

The supporting cast continues to make the entertainment world feel larger.

Characters such as Frill, Minami and other performers create additional perspectives on fame and professional competition.

The Future of Aqua and Ruby

Aqua and Ruby now stand at an important point in their respective journeys.

Both are using the entertainment industry to move toward personal goals, but their methods and priorities are not always identical.

Their future remains closely connected to the truth about their past.

Season 3 Visual Identity

The official Season 3 visuals emphasize the contrast between colorful entertainment imagery and the darker emotional themes of the story.

Idol performances, actors, studios and nighttime city scenes all represent different sides of the world the characters now inhabit.

Official Main Cast

Aqua Hoshino — Takeo Otsuka.

Ruby Hoshino — Yurie Igoma.

Kana Arima — Megumi Han.

Akane Kurokawa — Manaka Iwami.

MEM-cho — Rumi Okubo.

Ai Hoshino — Rie Takahashi.

Goro Amamiya — Kento Ito.

Sarina Tendouji — Tomoyo Takayanagi.

Official Production Team

Original Work: Aka Akasaka and Mengo Yokoyari.

Director: Daisuke Hiramaki.

Series Composition: Jin Tanaka.

Character Design: Kanna Hirayama.

Music: Taku Iga.

Sound Director: Takeshi Takadera.

Animation Production: Doga Kobo.

Streaming Information

The official streaming page lists Season 3 on services including ABEMA, d Anime Store, niconico, U-NEXT, Anime Hodai, Lemino, DMM TV, FOD, Hulu, TELASA, J:COM STREAM, Prime Video, Netflix and Disney+, among others.

Streaming availability and release timing can vary by region.

Final Thoughts

Oshi no Ko Season 3 expands the story beyond the early stages of the characters’ careers and places them deeper inside the entertainment industry.

Ruby’s search for the truth, Aqua’s continuing investigation, Kana’s emotional struggles, Akane’s acting career and B-Komachi’s growing popularity all develop at the same time.

The season also continues the series’ central idea that entertainment is built around performance, image and sometimes deception.

By the finale, the characters have reached another important turning point, while the announcement of Season 4 Final Season confirms that their animated story will continue.