Isui Sui

 (以翠すい) is a founding member of Poetreep.

Albums

 * BIOTOPE

Digital Singles

 * Kazoete, Manabuiwa.

Demo Singles

 * Bad End
 * FUTURE IS MINE

CD-R Singles

 * Kimi to
 * Trinity Dive (Cover)

Solo Singles

 * Kimi ni Kimeta!!

Singles

 * Yuunagi, Musaishoku, Tooi Hi no Yume. ft. Poetreep

Trivia

 * She is left-handed.