The Tale of Genji is a story about the son of an ancient Japanese emperor
That sounds interesting. Is there a book out or has a movie been made ?
Well, it is sometimes called the world's first novel due to its age. In the story Genji has a romantic interest in a concubine named Lady Kiritsubo. 
Wow, the world's first novel sounds fascinating to me. I would like to know more.  Would you say it's a love story ?
Some look at it as the Japanese version of Romeo and Juliette and in that regard it is romantic. There is more to the story however, his father denounces him and he becomes an imperial officer. It portrays his internal agony in the latter half of the story.