Kotomine Kirei is the priest and main antagonist in Fate/stay night, first released as a visual novel in 2004 and later adapted into popular anime series. His line to protagonist Shirou Emiya, Yorokobe shounen, meaning rejoice boy, became one of his most quoted moments because it sums up his manipulative personality. Clips of the delivery spread through anime forums, YouTube edits and soundboards, turning a serious story scene into a shorthand reaction for smug villains, fake blessings and ominously good news among fans.