MONOLOGUE was a video commemorating KISAKI's return to the music scene after his 2007 retirement, which was streamed online via various venues from 2010-05-01 ~ 2010-06-20. After the online video was taken down, UNDER CODE PRODUCTION released this physical version through the official web shop (the video remains unchanged).

Those who purchased this DVD freely received a signed KISAKI cheki, as well as a bonus CD-R with a comment and an instrumental version of a LIN song.