Nami Uraraka ni, Meoto Biyori - A Calm Sea and Beautiful Days with You

In 1936, Natsumi is the third of four daughters from the Sekiya family. One day, Natsumi’s father suddenly tells her that her marriage has been decided and her husband will be Takimasa Ebata, who is an officer of the imperial navy. She is surprised by her father's announcement. She has never had a romantic relationship and she has never met Takimasa Ebata before. Even for their wedding, Takimasa Ebata is unable to attend due to his naval training. Natsumi holds the wedding ceremony with Takimasa Ebata's picture. She cannot hide her embarrassment at the way their marriage begins. Later, after Takimasa Ebata's naval training finishes, she meets him for the first time. She is uncomfortable because he doesn't express what he thinks or feels. Nevertheless, Natsumi supports him as his wife and works hard with housework. As time goes by, she notices his kindness and gradually opens up to him.