The "Secret" Relationship Diary, Complete "We need to talk properly about us." Good things often attract trouble, as the saying goes. Chidori and Nanoha are torn about whether to share their secret with friends they will be separated from after graduation. And on the day of the graduation ceremony, what surprising words come from Nanoha's mouth―― Exams, graduation, and life in Tokyo... This is the concluding volume that weaves together their future.