"Mienai Yoru ni, Kienai Hitomi." 「みえないよるに、きえないひとみ。」

"「みえないよるに、きえないひとみ. 」" (Unseen Night, the Eyes that Don't Vanish) or more formally known as '''プーチンP第2部　「みえないよるに、きえないひとみ. 」 (Putin-P Part 2 "Unseen Night, the Eyes that Don't Vanish"''') is Putin-P's second album the first being " Don't Leave me Alone".

It consist of 11 tracks, 8 published songs from the Putin-P Series (only without Ronald's voice; fully re-mastered) and 3 unpublished songs. It also includes a 12-pages booklet drawn by Shiuka.

A 'humorous' crossfade can be heard here (nico video) and was first distributed in VOC@LOID M@STER 13. It's purchasable in D-Stage.