Randou Rino lost her mother a year ago, and has been on her own since then. Now her savings are running low and she has to rely on her penpal, Mr. Poppitt. Her penpal offers to set Rino up at a new school and a new apartment, but things seem a bit strange when she arrives. She is accepted into the illustrious Gokujou all-girl's school, and is summarily, almost curiously, accepted as part of the even more illustrious Best Student Council, who has more power and business ventures than most large businesses. Now a part of the student council, she befriends the talented members of the Best Student Council, leaving one to wonder how a girl with seemingly no talents or redeeming qualities would get chosen for such a group. And what kind of high school has Assault and Covert Divisions in its School Council anyways?!