Project Sekai: Ayakashi Yokochou no Natsuyasumi cover
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Project Sekai: Ayakashi Yokochou no Natsuyasumi 2026

Colorful Palette

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Before you knew it, you found yourself in an unfamiliar place.
It was a mysterious SEKAI inhabited by the ayakashis.
It seems you’ll need to make the summer festival a success to return to your original world!?

Work together with the ayakashis—who look familiar for some reason—to make the summer festival a success!

Details

Developers
Colorful Palette
Publishers
Colorful Palette, Sega
Genres
Visual Novel
Franchises
Hatsune Miku, Vocaloid

Release dates

  • Aug 18, 2026 Web browser · Japan