Project Sekai Adds Eien Hanahadashii as New Rhythm Game Song

The addition gives players a new rhythm game song with two vocal arrangements and a corresponding 3DMV, expanding the game's music library and multimedia content.

Reporting from 1 sources: 4Gamer.net.

Project Sekai: Colorful Stage! feat. Hatsune Miku added the song Eien Hanahadashii on June 12, 2026. The track, composed by Shishi Shishi, is available in two versions: a Sekai version sung by Megurine Luka and Vivid BAD SQUAD, and a Virtual Singer version sung by Hatsune Miku. A 3DMV for the song also released on the official YouTube channel.

Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.

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Sources

• 4Gamer.net 「プロセカ」に楽曲「永遠甚だしい」が登場。3DMVも公開に