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THE IDOLM@STER SideM ～P@SSION CHALLENGE We are 315!～ MONTHLY THEME SONG 08 C.FIRST

THE IDOLM@STER SideM ～P@SSION CHALLENGE We are 315!～ MONTHLY THEME SONG 08 C.FIRST — release edition, credited artists and sourced label relationships.

Release information

Source release date: 2026-06-24.

This page describes one source release edition. Other editions and recordings may have separate identities.

Credited artists

Labels on this release

These are sourced release-label relationships, not current artist contracts.