Yousei Teikoku.

Yousei Teikoku (妖精帝國), also known as Das Feenreich, is a Japanese gothic/visual kei metal co-ed band managed by Lantis. The act released their first indie mini album “Atarashii Momo” on May 3, 1996, before releasing their debut album “Momo to Hane” on December 7, 1997. Additional background says that The band is well-known for the song “Kuusou Mesorogiwi” from their album “PAX VESANIA”, which was the opening to the anime Mirai Nikki.