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An UTAUloid with a design by caffein, who also designed Yowane Haku. He has blue hair in a loosely done ponytail that rests on his shoulder; his eyes are yellow and he wears a butler's uniform.
Taya is described as an effeminate male, and is able to sing like a male or a female. Sometimes he is drawn with a blood bag.
(excerpts from Utau.wiki)
His page
炉心融解 (Meltdown) - Soune Taya
Nobody here but us chickens!