Original Title: 刻淫ワルツ。
Romaji: Kokuin Waltz
Release Date: 2005-10-09
Company, Producer: すぽんじ帝国 (Sponge Teikoku, Sponge Empire)
DLsite link: http://www.dlsite.com/maniax/work/=/product_id/RJ018662.html
DLsite English link: http://www.dlsite.com/ecchi-eng/work/=/product_id/RE018662.html
DMM link...