The Black Devil and the White Prince depicts the triangular love between two best friends and the new girl. Akabane is the girl who has this ugly duckling to beautiful swan transformation and ends up living at a dorm at a new school. This showcase of her on-and-off relationship with Kurosaki really adds to the overall theme where the main character poorly treats the female lead, and their feelings begin to develop. Of course the long-term friendship between Kurosaki and Shirakawa is also the factor that adds to the overall plot of the story and how they settle their overlapping feelings for Akabane. It's a very simple story but is enjoyable to watch. There's always a hint of the true feelings between all of the characters that strengthens the love triangle between the three characters. It's also slightly focused on the idea of Akabane becoming someone where she's confident in herself, due to her experience from middle school.

It's a good movie / drama and I would highly recommend watching the prequel before the movie since it adds a lot more context to the story and how everything developed.