565 
3 
Download MP3 
The line comes from Fate/stay night, where Kirei Kotomine, a priest and master in the Holy Grail War, addresses the young protagonist Shirou Emiya with twisted encouragement. Fans lifted the short exchange into clips and edits because Kirei's calm delivery captures his role as a villain who finds joy in conflict. It spread through anime communities on video platforms and social media, where it became shorthand for mock celebration and sinister approval. It remains popular because the phrase is short, instantly recognisable to Fate fans, and works even without knowing the full story.
About this sound
Kirei Kotomine's 'Yorokobe, shounen' line from Fate/stay night. Spoken in a calm, menacing tone, fans use it for villain reveals and ironic meme edits.
This is a short, four-second voice clip of Kirei Kotomine, the enigmatic priest from Fate/stay night, delivering his famous line 'Yorokobe, shounen,' which translates as 'Rejoice, boy.' His voice is low, steady and unsettlingly pleasant, with a slight pause that makes the blessing sound more like a threat. There is no music or background noise, just the cold confidence of a villain who already knows how the story will end. For fans, hearing it instantly recalls Kirei's twisted delight in other people's suffering, and for newcomers it lands as a chilling, almost polite warning that something bad is about to happen.
