13th single "Omae ga Shitteiru" by Touken Danshi formation of Kosuisankanoyuki! It will be released in 6 Pre-order Editions w/ DVDs with Types A-F and 6 Limited Releases Types A-F, for a total of 12 titles! Limited Releases are available as [CD + M-card]. Each CD will include an --card printed with an original photo of the Touken danshi member on the cover. The M-card includes the music video for "Touken Ranbu" -Kosuisankanoyuki- (stage footage edited music video) and the making-of footage of "Omae ga Shitteiru" cover shooting including shooting scenes and comments.