A collaboration event between the TV anime “My Happy Marriage (Special Edition)” and several shrines, titled “My Happy Marriage Prayer: Forging New Bonds and Strengthening Existing Ones,” will be held from October 16 to November 30, 2026, at four shrines in Tokyo, Osaka, and Kyoto. Amulets, shrine stamps, and stamp books inspired by Miyo’s hair ornament and Seika’s braided cord will be available for purchase, and those who purchase these items will receive a special bookmark as a gift.