Currently Yousei Teikoku have 5 members.
Lead Guitar: Shiren
Their music contained elements of electro, EBM, darkwave, neoclassical, ethereal, j-pop and ambient, with a Gothic style in it's core
but later on moved to a more Heavy/Goth/Symphonic Metal sound.
From the band's official facebook page:
Beginning in 1997, Her Highness Yui descended on the human realm from The Empire of the Fairies and began making music
with the intention of "regaining the forgotten hearts of those who believe in fairies".
Debuting with Japanese anime music label Lantis, the group has since created many songs for anime and video games.
With a concept combining Gothic Lolita visuals, and a mix of genres such as classical and J-pop based in heavy metal,
Yousei Teikoku stands out prominently in the anime music scene.
Representative songs include "Baptize", opening theme to the TV anime "Seikon no Qwaser"
and "空想メソロギヰ" (Kuusou Mesorogiwi/ Fantastic Mythology), opening theme to the TV anime "Mirai Nikki", among countless others.