Kana's tranquil life is thrown into disarray when her father is arrested for stealing from the Ministry of Defense. In an attempt to escape the turmoil, she enrolls in a secluded boarding school but soon realizes that her troubles are far from over. Along the way, Kana encounters the dashing Kisaragi Kou, who takes her out of her comfort zone. However, as she becomes more intimate with Yoko, Kana discovers that he is not quite who he appears to be. The situation becomes even more complicated when she notices a strange man wearing a trucker's hat lurking outside her window. Enter C-blossom -case729-, a gripping series filled with intrigue, action, and a convoluted storyline that will keep you at the edge of your seat.