Fate Grand Order is a mobile role playing game from Type Moon and Aniplex, first released in Japan in 2015 as part of the wider Fate franchise. Its Alter servants are darker, corrupted versions of familiar heroic figures, reimagined with harsher personalities and designs. Short voice clips of those characters travel quickly through anime and gaming communities, where fans isolate dramatic lines and performances for edits and soundboards. This angry singing moment fits that pattern, surviving because Fate fans instantly recognise the Alter attitude even without any visual context from the game itself.