The film has three major roles; the Japanese soldier (played by Junichi Kajioka), the Japanese niece named Asada (played by actress Yu Asada) and the adopted daughter.[4][7]
The film featured 100 soldiers from the Royal Thai Army, who took the roles of World War II Japanese soldiers.[5]
Plot
Asada, a young Japanese lady, comes to Manipur to pay homage to her dead uncle, who died in the Battle of Imphal in 1944. In Manipur, she had a dream. In her dream, her uncle asked her to go to a village. But Asada discovered that a man who looked like her uncle had died a few months back. Asada decided to find out the truth. She discovered about the trials and problems faced by the Japanese soldiers in India. She also discovered many unpublished letters and diaries. Her findings helped her a lot to search for the truth.[3][7]
"My Japanese Niece" looked into a Japanese army's life after the battle.
Director Mohen Naorem was inspired by an earthquake that hit Japan in the year 2011. During the earthquake, the Japanese army played an important role in helping the victims. He believed that the film will expose the humanitarianism of the soldiers in the Battle of Imphal of 1944.[3]
