If you thought the emotional rollercoaster of Oshi no Ko was intense before, brace yourself. Doga Kobo just officially confirmed that Oshi no Ko Season 4 will be the final season of the anime adaptation — and the teaser visual and trailer revealed at the Ichigo Production Fan Thanksgiving 2026 event are already making fans ugly-cry across every corner of the internet.
The announcement hit like a truck. After three critically acclaimed seasons that transformed Aka Akasaka and Mengo Yokoyari’s manga into one of the defining anime of the 2020s, the story of Aquamarine Hoshino, Ruby Hoshino, and the dark underbelly of Japan’s entertainment industry is finally reaching its conclusion.
What We Know About Oshi no Ko Season 4
The teaser visual unveiled at the event is nothing short of haunting. Without giving away major spoilers, it hints at the culmination of Aqua’s years-long quest for revenge — the thread that has been pulling every character toward an inevitable collision since Episode 1.
Here is what has been officially confirmed so far:
- Season 4 is the final season — this is the end of the anime adaptation
- A new teaser trailer has been released, showcasing key emotional moments
- Doga Kobo returns as the animation studio, maintaining the visual quality that made Seasons 1-3 so breathtaking
- The full returning voice cast includes Takeo Otsuka (Aquamarine Hoshino), Yurie Igoma (Ruby Hoshino), Megumi Han (Kana Arima), Manaka Iwami (Akane Kurokawa), Rumi Okubo (Mem-cho), and Rie Takahashi (Ai Hoshino)
Why This Final Season Could Break Anime Twitter
For those who have read the manga, you already know what is coming. The final arc of Oshi no Ko is arguably the most polarizing and emotionally devastating conclusion in recent shonen history. Aka Akasaka, the same brilliant mind behind Kaguya-sama: Love is War, pulled no punches with the ending — and the anime community is already divided on whether the adaptation will follow the manga faithfully or take creative liberties.
Season 3, which aired in Winter 2026 and was animated by Doga Kobo, swept the Anime Corner Winter 2026 rankings and won multiple awards. The series has consistently been one of the most-discussed anime every season it airs, and the pressure on this final season is astronomical.
The Star-Studded Cast Returns One Last Time
Rie Takahashi‘s portrayal of Ai Hoshino became iconic from the very first episode — that legendary 20-minute premiere that broke the internet in 2023. Even though Ai’s screen time has decreased, her presence looms over every scene. Meanwhile, Megumi Han and Manaka Iwami have turned Kana Arima and Akane Kurokawa into two of the most beloved female characters in modern anime.
The dynamic between Aqua and Ruby as siblings navigating trauma, revenge, and the toxic entertainment industry has been the beating heart of the series. Takeo Otsuka and Yurie Igoma will need to deliver career-defining performances to stick the landing on these characters’ arcs.
From Manga Masterpiece to Anime Legend
When the Oshi no Ko manga first debuted in Shueisha’s Weekly Young Jump, few predicted it would become a cultural phenomenon. The manga, written by Aka Akasaka and illustrated by Mengo Yokoyari (known for Scum’s Wish), blended idol drama, psychological thriller, and revenge narrative in a way that felt completely fresh.
The anime’s first episode — a 90-minute premiere that aired in March 2023 — immediately went viral. YOASOBI‘s opening theme “Idol” became the most-streamed Japanese song in history, and the series has only grown since then. Season 2 was voted the most anticipated anime of Summer 2024, and Season 3 continued the momentum with stunning animation and gut-wrenching plot developments.
What Fans Are Saying
Social media has been in meltdown mode since the announcement. Some fans are celebrating that the anime will adapt the complete story rather than leaving it unfinished. Others are nervous about how the controversial manga ending will translate to the screen. Either way, one thing is certain: Oshi no Ko Season 4 will be one of the most-watched and most-debated anime events of the year.
The fact that Doga Kobo has committed to seeing the series through to the end — rather than passing it off to another studio — speaks volumes about their confidence in delivering a worthy finale.
What Do You Think?
Are you ready for the final chapter of Aqua and Ruby’s story? Do you think Doga Kobo will follow the manga ending faithfully, or will they surprise us with anime-original changes? And who is your favorite character — Kana, Akane, or Mem-cho? Drop your thoughts in the comments below. This is going to be one wild ride to the finish line.
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