A Calm Sea and Beautiful Days with You (Japanese: 波うららかに、めおと日和, Hepburn: Nami Uraraka ni, Meoto Biyori; lit.'The Waves are Gentle and it's a Perfect Day for a Wedding') is a Japanese manga series written and illustrated by Nishika Hachi. The manga has been serialized on Kodansha's online platform Comic Days [ja] since October 2022. It is a romantic comedy set in the early Showa period and follows the newlywed couple Lieutenant Takimasa and his wife Natsumi. As of September 2025, the total number of copies in circulation, including e-books, had exceeded 1.5 million. It was adapted into a live-action television drama that aired on Fuji Television and its affiliates from April to June 2025.
Plot
It is set in the early Showa period in 1936. Natsumi Sekiya's father informs her that he has arranged her marriage to an Imperial Navy Lieutenant, Takimisa Ebata, without her knowledge and that they are to be wedded next week. Although shocked and anxious about the news, Natsumi follows through with the engagement despite her fiancé not being present due to job commitments. When Takimasa finally arrives two weeks after the wedding and they meet for the first time, he is distant and indifferent with Natsumi, and their first few weeks of living together are filled with humorous misunderstandings. Despite all the difficulties, the two gradually grow closer.
Natsumi is the third daughter of the Sekiya family with two older sisters and one younger sister. She often has her head in the clouds and is a bit clumsy.
Takimisa is a lieutenant of the Imperial Japanese Navy. He is reserved and maintained a stoic life before his marriage to Natsumi. Due to his unfortunate experiences in childhood he was generally only comfortable with his adoptive parents.
She is a typist. She meets Natsumi and becomes friends with her at the naval officers' wives association group. Even though she's not a naval officer's wife, she is forced to be present as her aunt runs the group.
Media
Manga
Written and illustrated by Nishika Hachi, A Calm Sea and Beautiful Days with You began serialization on Kodansha's online platform Comic Days [ja] on October 14, 2022.[5] Its chapters have been compiled into nine tankōbon volumes as of September 2025.[6]
A live-action television drama adaptation was announced on March 19, 2025. The series was directed by Hirano Makoto, Moriwaki Tomoyasu, and Kunitake Toshifumi from a screenplay by Yoko Izumisawa. It aired on television and on online platforms such as TVer from April 24 to June 6, 2025.[15][16] The show starred Kyoko Yoshine and Kyoya Honda as the leads. The show's intro song is "Muchū" (Crazy About), performed by Be:First.
^ abcde"森カンナ・咲妃みゆ・小川彩「めおと日和」で芳根京子の姉妹に、両親役は高橋努と紺野まひる（コメントあり）" [Kanna Mori, Miyu Sakihi, and Aya Ogawa will play sisters of Kyoko Yoshine in "Meotobiyori," with Tsutomu Takahashi and Mahiru Konno playing their parents.]. Natalie (in Japanese). Retrieved September 13, 2025.
^ abcdefg"芳根京子×本田響矢「波うららかに、めおと日和」に山本舞香、小関裕太、戸塚純貴ら6名（コメントあり）" [Yoshine Kyoko x Honda Kyouya Waves are Bright, Meoto Weather with Maika Yamamoto, Yuta Koseki, Junki Tozuka and six others]. 映画ナタリー (in Japanese). Retrieved September 14, 2025.
^WEBザテレビジョン. "本田響矢"瀧昌"が芳根京子"なつ美"への愛を証明するために奮闘 「波うららかに、めおと日和」FOD特別編、配信決定" [Honda Kyoya's "Takimasa" struggles to prove his love for Yoshine Kyoko's "Natsumi" - FOD special edition of "Bright Waves, Beautiful Days" to be streamed]. WEBザテレビジョン (in Japanese). Retrieved September 14, 2025.
^"波うららかに、めおと日和". tver.jp (in Japanese). Archived from the original on March 26, 2025. Retrieved September 14, 2025.
