- Movie: Our Little Sister (English title) / Sea Town Diary (literal title)
- Romaji: Umimachi Diary
- Japanese: 海街diary
- Director: Hirokazu Koreeda
- Writer: Akimi Yoshida (manga), Hirokazu Koreeda
- Producer: Kaoru Matsuzaki, Hijiri Taguchi
- Cinematographer: Mikiya Takimoto
- World Premiere: May 14, 2015 (Cannes Film Festival)
- Release Date: June 13, 2015
- Runtime: 126 min.
- Genre: Family / Sisters / Women / Based on a Comic / Arthouse / Best Film-Movie of the Year
- Distributor: Toho, Gaga Corporation
- Language: Japanese
- Country: Japan
There are three sisters: 29-year-old Sachi Kouda (Haruka Ayase), 22-year-old Yoshino Kouda (Masami Nagasawa) and 19-year-old Chika Kouda (Kaho). They live at a house in Kamakura, Japanese. Their house was left by their grandmother.
One day, they receive news of their father’s death. When the sisters were young, their parents divorced and their father left them. They haven’t seen their father in 15 years. Upon hearing the news on their father’s death, the sisters attend their father’s funeral.
At the funeral, they meet their stepsister Suzu Asano (Suzu Hirose). She is 14-years-old and there are no one to take care of her. Oldest sister Sachi invites Suzu to live with them.
- Based on the manga series “Umimachi Diary” by Akimi Yoshida (first published August, 2006 in Japanese monthly josei manga magazine Flowers). “Umimachi Diary” won the 6th Manga Taisho in 2012 and the Excellence Prize for manga at the 2007 Japan Media Arts Festival Awards.
- Filming begins late July, 2014.
|Haruka Ayase||Masami Nagasawa||Kaho||Suzu Hirose||Shinobu Otake|
|Sachi Kouda||Yoshino Kouda||Chika Kouda||Suzu Asano||Miyako Sasaki|
|Shinichi Tsutsumi||Midoriko Kimura||Kirin Kiki||Kentaro Sakaguchi||Ryo Kase|
|Doctor Kazuya Shiina||Hideko Takano||Fumiyo Kikuchi||Tomoaki Fujii||Minami Sakashita|
|Takafumi Ikeda||Ryohei Suzuki||Oshiro Maeda||Jun Fubuki||Lily Franky|
|Sanzo Hamada||Doctor Yasuyuki Inoue||Futa Ozaki||Sachiko Ninomiya||Senichi Fukuda|
Additional Cast Members: