Yoru is a Japanese duelist in Riot Games' tactical shooter Valorant, introduced in 2021, and his Blindside ability throws a flash that can pass through walls to blind enemies. The short cue became familiar to players through ranked matches, highlight reels and short-form edits, where it instantly signals an aggressive push or a surprise flank. As Valorant clips spread across YouTube, Twitch and TikTok, the sound moved beyond gameplay into memes and reaction edits, and it remains popular because it is instantly recognisable to fans and clearly marks the moment before a fight.