Cinderella Express is a cute one volume manga that does a lot more then the average Cinderella scene. Mari's best friends Jane just got married to the prince of a foreign country, but when Mari goes to visit, she finds out that not everyone's glad for the new queen. Someone seems to be trying to get rid of the new queen, and the country is thrown in a dark conspiracy. Mari's glad to investigate and protect her best friend, but things soon get dangerous... 

Cinderella Express is actually a shoujo manga, and there are quite a bunch of mysterious guys that Mari has to deal with including the king's brother. However, its not way too into the whole love scene, so you can concentrate on the interesting story. The manga would have probably made much more novels if it stretched the storyline, but its actually a cute story so if your tired of your old Cinderella and don't want to lose that fairytale-like kingdom feel, Cinderella Express is really worth it.