The song was first uploaded on December 6, 2009, making it (as the circle Wonderful Opportunity) their fourth original work uploaded, and Jesus-P's first to feature Kagamine Len as one of the main vocals. The song overall focuses on two somewhat narcissistic pair. "Narcistic Unison" was voted to JOYSOUND and KarenT on Wonderful Opportunity vol. 1. A V3 Append version (remastered) is also available on Wonderful Opportunity's BEST album KING & KNIGHT.