Yes, there are several. For example, 'Fruits Basket' has a complex web of relationships and a touch of romance similar in some ways. The story involves different characters with their own secrets and how they interact with the main character, much like in 'kyou kara maou' where the relationships are multi - faceted.
I would also recommend 'Akatsuki no Yona'. The relationship between Yona and her companions, especially with Hak, has a romantic aspect that is similar to 'kyou kara maou' in the sense that it is built on trust, mutual understanding, and shared experiences. As the story unfolds, the romance deepens in a natural and engaging way.
The unique magic system in 'ending kyou kara maou novels' sets it apart. It has its own rules and mechanics that are different from other similar novels. This magic system is often integrated well into the plot, influencing the characters' actions and decisions.
One of the special aspects of this light novel is its blend of humor and serious themes. It can make you laugh with the characters' antics in one moment and then tug at your heartstrings with a poignant moment in the next. The light novel also has a unique art style for its illustrations (if it has any), which can enhance the reading experience and give you a better visual understanding of the characters and the world they inhabit.
You can also try searching for it on Goodreads. Sometimes readers there leave comments about different translations and their quality. Another option is to visit your local library and ask if they have any translated versions in their collection or if they can order one for you.
The 'ending kyou kara maou novels' often have very interesting character development. The main characters grow and change throughout the story, which makes them more relatable. For example, the protagonist may start as a naive character but gradually becomes more mature through various challenges.
Overall, Hataraku Maou-sama follows the manga pretty well. Some details might be adjusted for the sake of animation or to improve the flow, but the core story remains intact.