Re:Zero karaoke collab launches May 21

The Re:Zero karaoke collaboration flagged in a May 20 social post appears to be a nationwide tie-up with Karaoke no Tetsujin starting Thursday, May 21, rather than a one-city pop-up. An event listing says the collaboration for TV anime "Re:Zero -Starting Life in Another World-" runs from May 21 through June 30, 2026. The listing says fans can buy collaboration menu items with bonus novelties and original goods, and that collaboration drinks can be ordered for takeout even without booking a karaoke room. (animemaps.com) The same listing fills in the location detail missing from the social post. (animemaps.com) Karaoke no Tetsujin venues named for the campaign are Ikebukuro East Exit, Shibuya Dogenzaka, Akihabara Electric Town, Fukuoka Tenjin, Osaka Namba, Nagoya Meieki, Matsuyama Gintengai, Kyoto Kawaramachi and Niigata Bandai City. Concept rooms are listed only at the Akihabara Electric Town and Niigata Bandai City branches. ### Where is the collaboration actually happening? Nine Japanese cities or districts are named in the event listing, spanning Tokyo-area stores and branches in Osaka, Kyoto, Nagoya, Fukuoka, Matsuyama and Niigata. (animemaps.com) That means the launch is broader than the original post suggested. Anime Maps, which mirrors collaboration details in Japanese and English, says the event is tied to the TV anime's fourth season. The official Re:Zero anime site separately says season 4 began broadcasting on April 8, 2026. (animemaps.com) ### What do fans get if they go? The May 21-June 30 campaign includes collaboration menu items with attached novelties and a separate line of original merchandise, according to the event page. The listing says the novelty items are distributed at random in order of customer use, and warns that products or novelties may end once stock runs out. (animemaps.com) Collaboration drinks are also available as takeout, the listing says, and can be purchased without using karaoke services. That detail makes the event accessible to fans who want the themed items without reserving a singing room. (animemaps.com) ### What was the post referring to about reservations? May 14 is the date the concept-room reservation window opened, according to the event listing, which says bookings started at 5:30 p.m. local time. The social post's reference to limited access appears consistent with those designated concept rooms, though the listing itself does not describe them as performance slots. (animemaps.com) Akihabara Electric Town and Niigata Bandai City are the only two branches identified as concept-room sites. The other seven locations are listed as standard collaboration venues for drinks, menu items and goods. (animemaps.com) ### Is this part of a bigger Re:Zero push in 2026? The official anime website says Re:Zero season 4 began airing on April 8, 2026, and the collaboration listing describes the karaoke event as running while that season is on air. The franchise's official channels have been active with season 4 material, including opening-theme promotion on the official YouTube channel. (animemaps.com) June 21 is the next date fans may want to watch. The event listing says online merchandise sales begin that day at 11:00 a.m. and continue through July 5 at 11:59 p.m., after the in-store collaboration has been underway for a month. (animemaps.com) (re-zero-anime.jp)