# Rilakkuma and Haikyu!! anime collaboration > Live situation record from CLSTR: https://clstr.news/situations/rilakkuma-and-haikyu-anime-collaboration > Updated: 2026-09-25T03:50:16.000Z. Sources: 10. Developments: 2. Speculation regarding a collaboration between the Rilakkuma anime and the sports manga ‘Haikyu!!’ began after the Rilakkuma official X account posted a mysterious logo and the date ‘2026. 9. 18’. Fans noted that the logo design resembled the ‘Haikyu!!’ branding and identified potential numerical connections between the post time and the date. Following these rumors, Production I.G and IG Port officially announced the ‘Rilakkuma x Haikyu!!’ IP collaboration. The project features 12 newly drawn special collaboration visuals depicting characters from Karasuno, Aoba Johsai, Nekoma, Fukurodani, and Inarizaki high schools interacting with Rilakkuma and Korilakkuma. A series of Pop Up Stores will be held at ‘baseyard tokyo’ locations across five cities in Japan. The first phase will run from November 20, 2026, to December 6, 2026, in Tokyo (Harajuku) and Osaka (Abeno Q's Mall). A second phase is scheduled from December 18, 2026, to January 17, 2027, in Sapporo, Kyoto, and Hiroshima. Merchandise for the collaboration includes trading tin badges, acrylic stands, pouches, and socks. Additionally, a collaboration lottery and card soft cookies featuring the collaboration visuals are planned for release in January 2027. In related news for the ‘Haikyu!!’ franchise, a ‘Haikyu!! Exciting School Festival’ Pop Up Shop is scheduled to open at four locations in Japan, including Tokyo and Osaka, starting October 23, 2026. ## Timeline ### 2026-09-25: Rilakkuma and Haikyu!! announce major IP collaboration IG Port is launching a ‘Rilakkuma x Haikyu!!’ collaboration, featuring special visuals and pop-up stores in five Japanese cities starting November 2026. 10 sources. https://clstr.news/cluster/haikyu-anime-announces-new-pop-up-shops-and-rilakkuma-collaboration ### 2026-09-16: Rilakkuma anime sparks collaboration rumors with Haikyu Fans speculate a collaboration between the Rilakkuma anime and the manga Haikyu!! following a mysterious social media post featuring a suggestive logo and the date September 18, 2026. 2 sources. https://clstr.news/cluster/rilakkuma-anime-sparks-collaboration-rumors-with-haikyu --- Cite as: Rilakkuma and Haikyu!! anime collaboration. CLSTR, https://clstr.news/situations/rilakkuma-and-haikyu-anime-collaboration