The official X account for the Rilakkuma anime series has sent the fandom into a frenzy following the publication of a mysterious teaser visual. Featuring a stylized logo bearing the franchise's name alongside the exact date September 18, 2026, the post went live at precisely 8:19 AM, instantly triggering widespread speculation regarding a potential crossover with Production I.G's powerhouse volleyball epic, Haikyu!!.
Keen-eyed community members quickly pointed out that the numbers 8:19 and 9:18 strongly echo the iconic '819' numerical pun associated with Haikyu!! (where 8/19 reads as Haikyu in Japanese goroawase). Social media channels erupted with theories, with enthusiasts debating whether the bear's signature leisurely lifestyle is about to collide with the high-octane intensity of competitive high school volleyball.
Production I.G and Season 3 Details
Alongside the teaser controversy, Production I.G continues its acclaimed adaptation work on Rilakkuma Season 3, officially titled Kimama ni Manpuku Biyori. The newly released third promotional video highlights the cozy, comforting everyday adventures of Rilakkuma, Korilakkuma, and Kiiroitori, featuring delightful narration by Lilas Ikuta of YOASOBI, who also performs the theme song 'Stay with Me'.
Directed by a seasoned creative team with animation production handled by Production I.G, the series broadcasts weekly on Saturdays in Japan. As viewers await further clarification on the mysterious September 18 teaser, the adorable bear's upcoming chapter promises plenty of comfort alongside unexpected intrigue.
