BIRTHDAY was a session band formed by vocalist 春 (haru) in 2008. They releases only one self-titled single and disbanded same year.
Vocal - 春 [ex.オーダーメイド → 氷男 → DOGinTheパラレルワールドオーケストラ] Guitar - 一樹 [ex. baroque → るう゛ぃえ → Ruvie] Guitar - 司 [ex. Ro§se → Evil of Miser → LuΦri → Luberie → Rayarch → ウサギ → bis] Bass - 燕 [ex. baroque → るう゛ぃえ → Ruvie] Drums - seika [ex. 雀羅 → bis]
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