Yuuyu (ゆうゆ, Yūyu, born January 1) is the artist name of Yūna Sasara (篠螺 悠那, Sasara Yūna), a Japanese music producer, mainly of Vocaloid songs, from Aichi Prefecture. He is member of the music unit smileY inc. alongside with voice actress Yuka Otsubo (大坪由佳).
Known For:Sound
Birthday:
Place of Birth:Aichi Prefecture, Japan
Also Known As:ゆうゆ, Yuuna Sasara, Yūyu, Yūna Sasara , 篠螺悠那