A collaboration campaign between the TV anime “Ao no Hako” Season 2—based on the heart-wrenchingly youthful club activity romance by author Koji Miura—and the karaoke chain Big Echo will run from September 29 to November 16, 2026.
In addition to displaying stills from the anime at five Big Echo locations, non-commercial official posters will be given away for a limited time of seven days starting on October 4, the day the series premieres.
・September 29–November 16, 2026: Scenes from the anime will be on display at 5 locations
・For 7 days only, from October 4–10, receive a free, non-sellable official poster
・Posters are available to one person per 1,000 yen (tax included) or more spent, following a prior online reservation
・Online reservations are being accepted starting September 25 (limited quantity)
“Ao no Hako” × Big Echo Event Overview
To commemorate the premiere of the TV anime “Ao no Hako” Season 2, which begins airing on October 4, a collaboration campaign with Big Echo Karaoke will be held. Information on Season 2’s theme song and promotional videos can be found at and in the Season 2 article at .
Scenes from the anime’s Season 2 will be on display at the five participating locations.
© Koji Miura/Shueisha · “Ao no Hako” Production Committee
| Campaign Period | September 29–November 16, 2026 |
|---|---|
| Details | Exhibition of anime stills / Official poster giveaway (October 4–10) |
| Participating Locations | 5 Big Echo locations in Tokyo, Kanagawa, Aichi, and Osaka |
| Special Website | Karaoke Big Echo |
| Official Series Website | TV Anime “Ao no Hako” Official Website |
| Official X | @bigecho_jp |
“Ao no Hako” × Big Echo Scene Still Exhibition
Participating stores will display scene stills from the anime’s Season 2.
© Koji Miura/Shueisha and the “Aono Hako” Production Committee
*Viewing is limited to in-store customers
Aono Hako × Big Echo Official Poster Giveaway
For a limited time only—7 days from October 4, when the anime premieres, through October 10—non-commercial official posters will be given away at participating stores displaying scene stills. Reserve a room via the special webpage and spend at least 1,000 yen (tax included) per person on karaoke to receive one poster.
© Koji Miura/Shueisha, “Aono Hako” Production Committee
| Period | October 4, 2026 – October 10, 2026 |
|---|---|
| Conditions | Make a reservation via the special webpage, visit the store, and spend at least 1,000 yen (tax included) per person |
| Number of Posters Distributed | One poster per person (up to 2 people per room, maximum of 2 posters) |
| Reservations | Via the store-specific reservation buttons on the special page (limited quantity) |
*Use via other reservation sites or without a reservation is not eligible
* Room reservations are based on designated time slots and cannot be used with free-time or time-pack options
*Reservation slots are limited and will close once filled
*Not valid if the payment amount after applying coupons, points, or discounts is less than 1,000 yen (tax included)
*Use is limited to karaoke and food/beverage (excluding merchandise purchases)
* You may not be eligible if the person who made the reservation is not present
* Posters cannot be exchanged, returned, or reissued
* Depending on prefectural ordinances, there may be times when those under 18 are not permitted to use the facility
Participating Aono Hako × Big Echo Locations
The scene photo exhibition and poster giveaway will take place at the following 5 locations.
| Tokyo | Akihabara Showa-dori Exit Station Store/Ikebukuro West Exit Station Store |
|---|---|
| Kanagawa | Yokohama Kannai Store |
| Aichi | Meieki 4-chome Store |
| Osaka | Namba Ebisubashi Branch |
Aono Hako × Big Echo FAQs
How long will the Ao no Hako × Big Echo collaboration last?
From September 29 to November 16, 2026. The official poster giveaway is limited to 7 days, from October 4 to October 10.
At which locations is this event being held?
Five locations: Akihabara Showa-dori Exit Station Branch and Ikebukuro West Exit Station Branch (Tokyo); Yokohama Kannai Branch (Kanagawa); Meieki 4-chome Branch (Aichi); and Namba Ebisubashi Branch (Osaka).
What are the requirements to receive an official poster?
Reserve a room via the web reservation form on the special event page and spend at least 1,000 yen (tax included) per person on karaoke to receive one poster. Reservations made through other booking sites or walk-in visits are not eligible.
How many posters can you get per room?
One room (one time slot) accommodates up to two people, so you can receive up to two posters.
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Please check the official website for details.
*Please note that the information in this article may be outdated. We apologize for the inconvenience, but please check the official website for the latest details.
© Koji Miura/Shueisha, “Aono Hako” Production Committee
