Union Arena's Demon Slayer Vol. 2 release in 2025 arrived as the TCG continued capitalizing on the anime's explosive popularity. This set represents a pivotal moment when anime trading cards transitioned from niche collectibles to mainstream hobby staples, with Demon Slayer leading that charge across multiple card games simultaneously. Mitsuri Kanroji stands as one of the set's most sought character cards, her distinctive pink hair and prominent role in the series making her instantly recognizable to fans. Collectors prize this rare for its character representation and the vibrant artwork that captures her unique presence within the Demon Slayer narrative.