IOSYS

IOSYS is a doujin circle founded by ARM in 1998. It's known as being the one of the most popular and oldest circles affiliated with Touhou Project. It is also used as a record label, radio network and store.

Main

 * ARM - Composer, Arranger, Founder.
 * しゃちょう/夕野ヨシミ：Lyricist, Designer.
 * D.watt/七条レタス：Composer, Arranger, Lyricist, Screenplay, DJ.
 * void/コバヤシユウヤ：Composer, Arranger.
 * uno/RoughSketch：Composer, Arranger, DJ.
 * まろん：Composer, Arranger, DJ, Lyricist.

Guest Members

 * あいこりん (Aikorin) - Vocalist.
 * Nana Takahashi - Vocalist.
 * miko - Vocalist.
 * 龍波しゅういち (Tatsunami Shuuichi) - Lyricist.
 * ヤマさん (Yama-san) - Lyricist.