Oshi no Ko Season 4 Confirmed as the Final Season — New Teaser Visual and Trailer Revealed
Light spoilers for how Oshi no Ko Season 3 ends, including its final episode. Nothing from Season 4 itself is spoiled here beyond what's shown in the teaser.
Oshi no Ko is heading into its final chapter on screen. Season 4 was confirmed as the anime's last season on March 25, 2026, announced by the Season 3 staff immediately after that season's finale aired, according to Anime News Network. Nearly five months later, on August 16, 2026, the franchise gave fans their first real look at what that ending will actually look like — a new teaser visual and full trailer, revealed at the "Ichigo Production☆Fan Thanksgiving 2026" event, according to Anime Corner.
For a series that's spent three seasons building toward the truth behind Ai Hoshino's murder and the entertainment industry that consumed her, "final season" is not a phrase being thrown around loosely. Here's everything actually confirmed so far.
The final season announcement itself
The confirmation that Season 4 would close out the anime came directly from the Season 3 production staff, delivered right after Season 3's last episode finished airing on March 25, 2026, per Anime News Network's reporting. That's a notable way to handle the news — rather than a separate press release or a slow drip of hints, the production team used the moment right after Season 3's ending to tell viewers explicitly that the story was entering its last stretch on screen.
That timing matters. Season 3 didn't wrap on a standard-length episode — it closed with a one-hour special 35th episode, giving the production room to land a genuinely significant beat before pivoting straight into the final-season announcement. In that closing episode, Aqua unexpectedly reunites with Sarina's mother, Marina Tendoji, a reunion that's now the most recent piece of story the anime has actually shown on screen. Whatever Season 4 opens with, it's picking up from that moment.
What the new teaser visual shows
The August 16 reveal gave fans a new key visual built around a clear, deliberate image: Aqua and Ruby standing together at the foot of a lit staircase inside a theater, with the rest of the series' cast positioned on the steps behind them. According to Anime Corner, each character in the visual is dressed in an outfit based on the original manga's volume covers — a detail that reads as a direct visual nod to the source material now that the manga itself has finished its run.
The tagline attached to the visual is "Guided by the stars, to the final stage." It's the kind of line that does a lot of work in a small space — "stars" doubling as both a reference to Ai's stage name and the idol industry the whole story revolves around, and "final stage" leaning into the season's billing as the anime's actual conclusion rather than just another chapter. Staging the twins at the base of a lit staircase, with the rest of the cast arrayed above and behind them, frames Season 4 visually as a climb toward something — an ending the whole ensemble is being pulled toward together, even if the story itself has made clear that not everyone on those steps is aligned in what they actually want out of that ending.
The full trailer alongside it
The teaser visual wasn't revealed alone — a full trailer dropped alongside it at the same Ichigo Production☆Fan Thanksgiving 2026 event, per Anime Corner's coverage. Pairing a key visual with an actual trailer, rather than just a static image, is a bigger commitment from the production than a typical early-stage announcement; it signals the season is far enough along in production to have real footage or at least polished promotional material ready to show an audience, rather than concept art alone.
The cast is all coming back
Every principal voice actor from the prior seasons is confirmed to return for Season 4, according to Anime Corner. That list includes Takeo Otsuka as Aquamarine Hoshino, Yurie Igoma as Ruby Hoshino, Megumi Han as Kana Arima, Manaka Iwami as Akane Kurokawa, Rumi Okubo as Mem-cho, Lynn as Miyako Saito, and Rie Takahashi as Ai Hoshino.
Keeping Rie Takahashi attached as Ai Hoshino is worth noting specifically, given how central Ai's presence — in flashback, in memory, and in the way every other character orbits around her absence — has remained to the story even seasons after her death within the narrative. A full cast return across the board is a strong signal of continuity going into the ending, rather than the kind of retooling that sometimes accompanies a franchise's last stretch.
Doga Kobo stays on through the finish line
Doga Kobo is confirmed as the animation studio for all four seasons, with most of the Season 3 staff expected to return for Season 4, according to Anime News Network. Reported chief animation directors for the new season include Kanna Hirayama and Ayaka Muroga, with Kenji Sawada named as the sole main animator.
Having one studio carry a franchise from its first season all the way through its billed final season is not something every long-running anime manages — mid-series studio changes are common enough in the industry that Doga Kobo's unbroken run across all four seasons is worth flagging on its own. Combined with most of the Season 3 staff staying attached, the production picture here looks like continuity rather than a creative reset for the finale.
Crunchyroll will stream it globally
According to Anime News Network's reporting, Crunchyroll has confirmed it will stream Season 4 globally. That's consistent with how the platform has handled the prior three seasons, and it means international fans won't need to hunt for a new streaming home when the season actually arrives. What Anime News Network's report does not include is any release date or release window attached to that confirmation — the streaming platform is locked in, but when the season actually premieres is still an open question.
Why "final season" carries real weight here
Oshi no Ko is based on the manga written by Aka Akasaka and illustrated by Mengo Yokoyari, which concluded its serialization in November 2024, running 16 collected volumes in total. That's an important piece of context for what "final season" means in this specific case. Unlike a franchise confirming a next season of an ongoing, unfinished manga, Oshi no Ko's anime is now working from a source material that already has a completed, known ending — every plot thread, every reveal about Ai's murder, and every arc involving Aqua and Ruby's dual revenge-and-reckoning storylines already exists on the page in full.
No source has specified exactly which volumes or chapters Season 4 is expected to adapt, and it wouldn't be accurate to guess at that mapping without a confirmation from the production committee or a reporting outlet. What can be said with confidence is the broader shape of the situation: with the manga finished and Season 4 explicitly billed as the anime's last, this season carries the job of bringing the story to whatever ending Akasaka and Yokoyari actually wrote, rather than adapting a mid-story arc with more material still to come afterward.
Catching viewers up: where the story stands
For anyone who hasn't followed Oshi no Ko closely, the season-by-season shape looks like this. Season 1 premiered in April 2023, opening with an unusually long 90-minute first episode that set the tone for how much ground the story was willing to cover in a single sitting. Season 2 followed in July 2024. Season 3 premiered January 14, 2026, and aired across a notably wide broadcast footprint of 36 Japanese TV channels — a distribution scale that reflects how far the franchise's popularity had grown by that point.
Season 3 closed with that one-hour, 35th-episode special on March 25, 2026, ending on Aqua's unexpected reunion with Marina Tendoji, Sarina's mother. That reunion is the most recent story beat the anime has actually depicted, and it's the jumping-off point Season 4 will presumably build from once it actually airs.
What still isn't confirmed
It's worth being explicit about the gaps in what's been announced so far, because a reveal this significant tends to generate more assumption than the actual reporting supports. No release date or release window for Season 4 has been announced by any outlet covering the story, including Anime Corner and Anime News Network. Anyone claiming a specific premiere month or year at this stage is speculating rather than reporting a confirmed detail. Similarly, no source has confirmed which manga volumes or chapters the season will adapt, so any chapter-range claims circulating online should be treated the same way — informed guessing, not settled fact.
Bottom line
What's locked in is significant on its own: Season 4 is officially the final season, confirmed by the Season 3 staff the moment that season wrapped; a new teaser visual and full trailer are out, built around Aqua and Ruby leading the cast up a lit theater staircase under the tagline "Guided by the stars, to the final stage"; the entire principal cast is returning; Doga Kobo remains the studio through the finish line with most of its Season 3 staff intact; and Crunchyroll has confirmed a global stream. What's still missing — a premiere date and any confirmation of adaptation range — leaves the biggest practical questions open for now. For a franchise built around the gap between a curated public image and the messier truth underneath it, an ending built on a completed manga and a fully returning cast and crew is about as strong a foundation as a "final season" announcement can have.
Expect a fuller staff and production rollout, additional promotional material, and eventually a premiere window — though as of this reporting, no release date has been announced. Crunchyroll has confirmed a global stream, but timing remains unconfirmed.