Willkommen In Märchen～お伽話へようこそ

Willkommen In Märchen～お伽話へようこそ is a song sung by Miku Hatsune and Gumi Megpoid. Uru Kurousagi has her own version of this song as well. It is the one-hundred-and-fifty-second track in Other Vocaloid Songs 130: Mostly ONE Volume 2 and an Album Only song.