“Haikyu!! Exciting Culture Festival POP UP SHOP by Production I.G” will be held sequentially starting October 23, 2026, at four locations nationwide: Shinjuku Marui Annex, Namba Marui, Morela Gifu, and Sumark Isesaki! In addition to new merchandise—such as connectable acrylic stands featuring newly drawn visuals of the characters enjoying the cultural festival and the “Exciting Cultural Festival” lottery—there will also be postcard giveaways for every 2,200 yen (tax included) spent, as well as photo spots with standee panels!