Find a Japanese movie, please tell me.

Love is neither fish nor fowl. This film is based on the erotic novel of Shu Dong in Xintang. It tells the story that Jing Jie (Kanji Tsuda), an editor of a publishing house, visited the home of a new writer one day, but was unexpectedly attracted by the amazing beauty of the writer's girlfriend Ling Xiang (Yoko Kamon). Jingjie, who has been married for 15 years, has long been tired of the boring life with his wife. Due to the sudden disappearance of a writer recently, Jingjie helped Ling Xiang find a boyfriend, but the two of them touched the spark of love, and a taboo love between men and women that crossed the moral bottom line and sensibility was better than rationality was staged.