In contrast to Haruko's angry departure from Kitansanriku 25 years ago, Aki is given a warm and proper send-off by her Mom and friends, complete with flag-waving and happy banzai cheers.
Inside the train, Daikichi gives mother and daughter some alone-time before departure. Haruko asks Aki if there is something they need to discuss. But Aki turns away, saying they've already talked about everything last night. She looks out the window, somewhat feeling reluctant to leave. All the while, her mother tries to give her some motherly, last minute advice.
大吉（杉本哲太）の計らいで貸し切りの臨時列車で東京に行くことになったアキ（能年玲奈）とユイ（橋本愛）。別れ際、春子（小泉今日子）はアキに一通の手紙を渡す。みんなが集まったリアスで、勉（塩見三省）が意外な事実を語りだす。列車が袖ヶ浜にさしかかると、浜には夏（宮本信子）の姿があった。一方、一緒に行くユイは、途中の駅から合流するはずだったが…。
