Cosmic Princess Kaguya! and Oshi no Ko release a second crossover video
What Was Announced
On August 2, 2026, at 9:00 p.m. JST, Twin Engine published a press release announcing a second crossover video between the film Cosmic Princess Kaguya! and the TV anime Oshi no Ko. The new clip was released through the official Oshi no Ko YouTube channel and continues the two-part collaboration that brought Kaguya and MEMcho together.
The release says the second video flips the dynamic from the first one: Kaguya visits MEMcho’s room, the two compare their spaces, and the conversation moves toward live-show energy and audience participation. The centerpiece is a challenge built around B-Komachi’s song Sign wa B, which gives the crossover a performance angle instead of a simple image-based tie-in.
That matters because the two properties are not being matched at random. Oshi no Ko centers on idols, streaming, and public performance, while Cosmic Princess Kaguya! frames its lead character through virtual space and online expression. The collaboration uses those shared ideas to build a short piece that feels native to both franchises.
Why It Matters
Promotional crossovers work best when they add something that neither side could do alone. Here, the appeal is the contrast between Kaguya’s freewheeling personality and MEMcho’s idol and creator instincts. The release presents the exchange as a playful duet, but it also shows how Japanese anime marketing increasingly relies on character chemistry, music, and short-form video rather than only on posters or static key art.
For fans, the practical value is simple: this is a clear, official touchpoint that extends both titles’ visibility without requiring prior context beyond the characters involved. It also suggests that the campaign is organized with a defined endpoint, since the release says the two-part collaboration is now complete.
Context for International Fans
If you follow anime outside Japan, this is a good example of how modern promotion travels. The announcement lives in a press release, the video is on YouTube, and the core idea is easy to grasp even if you do not follow every Japanese entertainment outlet. You do not need a broadcast schedule or a local event badge to understand the point of the crossover.
The collab also sits inside a broader rollout for both properties. Oshi no Ko has a third-season special event scheduled for August 16, 2026, and the film side is preparing a revival screening starting September 18, 2026 with special formats including MX4D, 4DX, SCREENX, ULTRA 4DX, and Dolby Atmos. In other words, this is not a one-off stunt; it is part of a longer promotional cycle.
What Happens Next
The collaboration video closes the two-video project, so there is no further crossover episode promised in this release. The next concrete dates to watch are August 16, 2026 for the Oshi no Ko event and September 18, 2026 for the film’s revival screening. If either property publishes follow-up material, it will likely build on the same character pairing rather than restart the campaign from scratch.
Sources
Information was checked on August 2, 2026, at 9:30 p.m. JST.
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