UUUM Co., Ltd. and Fighters Sports & Entertainment Co., Ltd. announced that they will hold “UUUM DAY in F Village,” an experiential festival presented by UUUM, on Saturday, August 22, 2026, at ES CON FIELD HOKKAIDO in Kitahiroshima, Hokkaido, the home stadium of the Hokkaido Nippon-Ham Fighters. The event is designed to bring popular creators and fans together in the same space to create once-in-a-lifetime memories through serious competition and interaction. Ticket sales will begin at 12:00 on Friday, May 15. The event will bring together some of Japan’s leading creators, including Fischer’s and Tokai OnAir, at the world-class ES CON FIELD. The main event, “Fighters OB Selection vs. UUUM All-Star,” will feature a serious baseball showdown in which a team of creators challenges a selection of legendary former Fighters players. HIKAKIN will take the mound for the ceremonial first pitch, marking the opening of the festival. The previous matchup, held in summer 2025, drew more than 15,000 spectators and recorded over 30,000 peak concurrent online viewers, creating nationwide excitement. This year, the event will expand further and take on what organizers describe as their largest spectator-participation project, involving the entire stadium. The three main highlights are: a full-powered contest against the Fighters OB Selection, whose former professional players will respond with skill and power; a major gathering of creators including HIKAKIN, Fischer’s and Tokai OnAir at ES CON FIELD to create a historic moment with the audience; and exclusive all-day experiences under the “UUUM DAY in F Village” banner, including programs that let fans feel closer to their favorite members and interactive events using the full scale of the ballpark. Further details will be announced gradually. Organizers said the event aims to turn the scenes fans usually see on smartphones or television into lifelong memories in the heart of Hokkaido, giving children a day to fully experience the e