A Flower Aflame (2016)
Original title: 花芯
A Flower Aflame is a 2016 Japanese-language drama movie directed by Hiroshi Ando, with a running time of 1h 35m. It stars Eri Murakawa, Masanobu Ando and Kento Hayashi.
When Sonoko enters a traditional Japanese arranged marriage with Amamiya facilitated by her parents the resulting union is loveless including the functional and goal-oriented sex. When the husband and wife move for his work she falls for her husband's boss and takes on the role of a betrayer.