Matsumiya Kana's world is turned upside down when her father is arrested on charges of embezzling from the Ministry of Defense. She decides to escape the trauma by transferring to a private boarding school, but trouble follows... Megane bishounen Kisaragi Kou gets Kana to open up to him, but what's this?! He isn't really who he says he is? And who's the dude in the trucker's cap lurking outside her window? Welcome to C-blossom -case729- a series with action, intrigue, and well...a plot.