safebooruhttps://safebooru.org/index.php?page=atom&tags=a-very-merry-unbirthday-to-you bass (violinist of hameln) bass (violinist of hameln) (cosplay) caster (fate/zero) cosplay disembodied head epaulettes eyepatch fate/zero fate (series) gem greyscale male military military cap military uniform monochrome staff uniform uryuu ryuunosuke violinist of hameln2024-06-27T19:07:05Zsafebooru