Overview
A collaboration campaign between the TV anime "Blue Box" Season 2 and karaoke chain Big Echo runs from Tuesday, September 29 to Monday, November 16, 2026. Five stores in Tokyo, Kanagawa, Aichi and Osaka take part, with Big Echo Akihabara Showa-dori Exit Ekimae store representing Akihabara. Scene stills from Season 2 are displayed inside the stores.
Highlights
To coincide with the anime's broadcast start, non-sale official posters will be given away for seven days only, from Sunday, October 4 to Saturday, October 10. Customers who reserve a room through the special web page and spend at least 1,000 yen (tax included) per person on karaoke receive one poster.
- September 29 - November 16: Season 2 scene stills on display
- October 4 - 10: Official poster giveaway (limited quantity)
- Up to 2 people per room (slot) and up to 2 posters
- Bookings via other sites or walk-ins are not eligible
- Room bookings are fixed time slots; free-time and time-pack plans are not eligible
Event Details
- Dates: September 29 (Tue) - November 16 (Mon), 2026 (poster giveaway October 4 - 10)
- Venue: Big Echo Akihabara Showa-dori Exit Ekimae store (Dining Square Akihabara 6-9F, 1-16 Kanda Sakumacho, Chiyoda-ku, Tokyo)
- Price: Standard karaoke charges (one poster per person spending 1,000 yen or more)
- Reservation: Web booking via the special page required for the poster giveaway (limited slots)
The other participating stores are Ikebukuro Nishiguchi Ekimae, Yokohama Kannai, Meieki 4-chome and Namba Ebisubashi.
Recommended For
- Fans of "Blue Box"
- Anyone who wants a non-sale poster
- Anyone who wants karaoke with a collab display in Akihabara
