[Oshi no Ko] 3rd Season closes the revenge arc on its own terms

What it is

The third season of [Oshi no Ko] ran weekly January 14 – March 25, 2026 on Wednesdays at 23:00 JST, totaling eleven episodes. Doga Kobo returns. Aqua shifts focus away from the active revenge plot toward his career as an actor — but he keeps the memories of his mother close, which puts new distance between him and Kana Arima. Meanwhile, Ruby picks up the investigation into Ai Hoshino's death and the murders linked to it, climbing the entertainment-industry ranks with the unconventional, sometimes uncomfortable methods the manga is known for.

Why it's worth watching

This is the season that breaks the format the show established in Season 1. The investigation isn't the foreground anymore — it's the engine running underneath a story about ambition, performance, and how people change when they decide what they want from a career instead of from a vendetta. Doga Kobo's signature stagework continues: blocking that mimics theatrical sightlines, paletted shifts between performance and rehearsal, music cues that step out of the way during dialogue.

This is also where the season-rank math tracks with the audience response. The Bayesian adjusted score is 8.66 in our system; MAL has it ranked in the top 100 on its narrower window. Both numbers reflect the same observation: a fan-base that was promised a murder mystery accepted, mostly happily, a season about Ruby growing up.

When and where

Eleven episodes. Wednesdays 23:00 JST on TBS/MBS, English simulcast on HIDIVE. The arc is structured to close on a beat that sets up whatever S4 turns into — manga readers will recognize the cliffhanger.

What to watch for

• Episode 6 is the one critics are pointing at as the season's pivot.
• Ruby's solo scenes are where the show takes its biggest stylistic swings.
• The score under the closing montage is a callback to the Ai-era theme work; if you watched S1, it'll land.