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Missing: Chapter summaries
"ASTRO FES," a large-scale music event, is going to be held! Chiaki, Jun, Izumi, and Natsume meet with some students from Shibuya who work "in fields different than of being an idol," and will be performing at the festival in a collaboration—
Project SEKAI Collaboration Stories is an off-app story released on Feb 15th 2025.
It features Izumi, Chiaki, Natsume, Jun, Toya, Tsukasa Tenma, Rui, and Akito.
CGs
Episodes
| A Star's Shining Stage | |||
|---|---|---|---|
| 1 | Episode 1 | ★ |  
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| 2 | Episode 2 | ★ |
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| Resonating Fighting Spirit | |||
| 3 | Episode 1 | ★ |   
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| 4 | Episode 2 | ★ |
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| Wielding Each Other's Weapon | |||
| 5 | Episode 1 | ★ | 
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| 6 | Episode 2 | ★ |
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| Interwoven Show Of Magic And Inventions | |||
| 7 | Episode 1 | ★ |  
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| 8 | Episode 2 | ★ |
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Trivia
- This is an off-app collaboration story with Project SEKAI COLORFUL STAGE!.
- See the Project SEKAI COLORFUL STAGE! × Ensemble Stars!! Collaboration page to view the event gallery.
- This collaboration story came in the form of Side Stories, unlockable via the collaboration cards.
- The collaboration also featured various Area Conversations between a variety of collaboration characters, not archived on this page.