CP is letting Ai, pay attention. It describes the story of two people who separated after graduation. Jean, who wanted to become stronger to protect each other, and Eren, who chased the captain and gave his heart. The two have always been in contact by writing letters, but have never met. Mikasa, who has always concealed something from Jean, and Amin, who has inherited the will, by the end of the story, the two are still telling white lies to Jean.