QUEEN BEE's Avu-chan Writes Ending Song for Black Butler: Emerald Witch Arc, Performed by RYUGUJO by Marko Jovanovic February 24, 2025 by Marko Jovanovic February 24, 2025 The ending theme song for the Black Butler: Emerald Witch Arc will be performed by RYUGUJO,… facebooktwitterpinterestlinkedintumblrredditwhatsapp