556ミリメートル

556ミリメートル (556 millimeters, 556mm) is a doujin circle founded by Tomoya in 2011. It's known for producing the Hi-SPEED TOHO EURO series.

Main

 * Tomoya - Founder, Arranger.
 * BOB THE BASS - Illustrator.

Guest Members

 * 黒崎朔夜 - Vocalist.
 * KUMI - Vocalist.
 * めらみぽっぷ (Meramipop, Merami, 珊瑚ジェーン, Sango Jean) - Vocalist.
 * さゆり (Sayuri) - Vocalist.
 * きこうでんみさ (Kikouden Misa) - Vocalist.
 * ななひら (Nanahira) - Vocalist.