Passage: In 2004, he released an independent EP, "Orange no Haikei no Akai Seibutsu" (オレンジの背景の赤い静物, Red Object with an Orange Background). In 2006 he was signed to Augusta Records after catching the attention of one of the staff members. He was the opening act of Augusta Camp 2006 in July. He debuted with the single "Synchro" (シンクロ, Shinkuro).

Question: When was the EP released?
2004