Sachi, Yoshino and Chika are three sisters living happily together in a relaxed, tight-knit seaside town south of Tokyo. When their long-estranged father passes away they travel to the countryside to attend his funeral, where they meet their shy teenage half-sister, Suzu. Bonding quickly, they invite the orphaned Suzu to live with them and she eagerly agrees, sparking a journey of self-discovery for all four sisters, looking back into painful pasts but also reaching forward to hopeful futures.

Our Little Sister is out in cinemas on Friday.