Kamen Rider Ryuki aired in Japan from 2002 to 2003 as part of Toei's long-running Kamen Rider tokusatsu franchise. In the series, Riders use Advent Cards read by their Dragvisor to summon Contract Monsters from the Mirror World and access weapons and attacks. The clipped announcement style made each card activation memorable, and short recordings later circulated through fan edits, gaming videos and soundboards. Its continued use reflects lasting affection for Ryuki's card-based battle system and distinctive belt and visor sounds.