Japanese idol franchises are willing to do almost anything to tap into their community’s wallets, and this time they took their ambition straight into the history books. The massive multimedia project The Idolmaster Million Live! has just received its official Guinness certificate after completing one of the most absurd and impressive commercial feats in the music industry: releasing a different compact disc every week for an uninterrupted year.

The campaign, dubbed “SPECIAL SOLO RECORDS,” was a total endurance challenge for both producers and completionist fans. The format involved publishing the same nine anniversary songs from the franchise, but performed solo by each of the fifty-two idols in the cast. The release marathon kicked off on July 23, 2025, with the version by the gentle Mirai Kasuga and successfully concluded on July 15, 2026, with the disc by Ritsuko Akizuki. Considering each physical copy cost around 3,300 yen, any fan wanting the full collection had to spend a fortune.

To celebrate this achievement officially titled “the most consecutive weeks releasing a version of the same music on CD,” the production committee will organize a commemorative event in Tokyo on October 25. True to their ultra-exclusive style, only one hundred lucky winners will be chosen via a lottery using the special codes included in the physical discs, and winners will receive an official participation certificate printed with their names. Additionally, the event will feature several legends from their spectacular voice cast to celebrate with fans.

Featured Voice Cast

• Eriko Nakamura as Haruka Amami.
• Naomi Wakabayashi as Ritsuko Akizuki.
• Haruka Yamazaki as Mirai Kasuga.
• Ayaka Suwa as Matsuri Tokugawa.
• Rikako Yamaguchi as Rio Momose.
• Rie Suegara as Fuka Toyokawa.

Given the immense logistical effort and insane economic cost of maintaining a physical release every week for fifty-two consecutive weeks, do you think another idol franchise will attempt to break this peculiar record, or will this madness remain an unattainable milestone in otaku history?