Press Release

June 30, 2025
DAIICHIKOSHO CO., LTD.

　DAIICHIKOSHO CO., LTD. will hold a store jack project from July 7, 2025, the day of their debut, as a collaboration project between BIG ECHO and the seven-member group CLASS SEVEN.

　The 7-member group CLASS SEVEN, whose formation was announced by TOBE on November 11, 2024, will make their digital debut on July 7, 2025, with the song "miss you." They are already with TOBE.
They have appeared in concerts where artists gather, and now they are making their full-fledged debut.

　 At BIG ECHO Upon their debut, they will be among the first to exhibit life-size panels of CLASS SEVEN members and broadcast music videos on in-store monitors, and will hold a store jack project at seven stores that meet the expectations of fans of the entire store. In addition, we will present a valuable sticker to those who use the store after making a reservation from the dedicated page.

　 By collaborating with CLASS SEVEN, we aim to attract more customers to BIG ECHO and promote the use of karaoke.

■ BIG ECHO ×CLASS SEVEN Store Jack Overview

Participating stores:

7 stores (Omiya Nandingori Store, Kaihin Makuhari Store, Yaesu Main Store, Gotanda East Exit Station Front Store, Ikebukuro West Exit Station Front Store, Hachioji Store, Yokohama Sotetsu Exit Station Front Store No. 2)

Contents:

① Life-size panel display
Implementation Period: Monday, July 7, 2025 - Sunday, September 7, 2025
　　　　　 Life-sized panels of all members will be displayed.

② Video screening on in-store monitors
Implementation Date: Monday, July 7, 2025
　　　　　 Music videos will be continuously screened on in-store monitors.

Life-size panel

　　　　　　

③Sticker distribution
Implementation Period: Monday, July 7, 2025 - Sunday, July 13, 2025

A sticker will be presented for each of the 777 limited quantities per store (maximum 7 people per 1 room).
^{* Reservations only from the dedicated page / BIG ECHO Please check the campaign page on the official site}

Stickers

■ With the communication karaoke DAM, a karaoke stamp rally will be held where you can win original messages and merchandise.

Implementation Period:

Monday, July 7, 2025 - Sunday, September 7, 2025

Participating stores:

At karaoke DAM locations nationwide

Compatible Machines:

LIVE DAM WAO!, LIVE DAM Ai series, LIVE DAM STADIUM series, and LIVE DAM series

Assigned Song:

"Miss you"

Application Method:

① Touch the "CLASS SEVEN Campaign" banner on SmartDAM at participating stores.
　 Select the challenge song on the campaign page and transfer it to DAM
② When you read the QR code displayed on SmartDAM with your smartphone, you will proceed to the stamp rally
　 page and earn 1 stamp.
^{※ Please check the campaign page on the DAM official website}

Prizes:

[30 stamps] Video comments from members - All applicants
[7 stamps] CLASS SEVEN collaboration original canvas board - 7 winners
[2 stamps] Original wallpaper (7 types in total) - All applicants

Original canvas board

🄫TOBE Co.,Ltd.

■ Related sites
・Campaign page on the BIG ECHO official website: https://big-echo.jp/campaign/classseven/
・Campaign page on the DAM official website: https://www.clubdam.com/campaign/collaboration/cp202507_classseven.html
・CLASS SEVEN Official Website: https://tobe-official.jp/artists/classseven