Cinderella Boy

this tv series has plenty of actions scenes, fightin the baddies and rescuing something as this movie. both protag are undergrounds. 

Rella & Fujiko are characters created by Monkey Punch. These anime offer the perspectives of a similar woman character in opposing career choices; a private detective and a thief. By watching these anime I was able to experience a unique point of view when using a "Monkey Punch lady" as the protagonist.  

Created by Monkey Punch, Lupin The 3rd & Cinderella Boy offers the episodic adventures of thieves & private detectives while maintaining similar character designs. In my viewpoint, if you ever wanted to see a Lupin III anime with greater focus on Lupin & Fujiko then Cinderella Boy is the closest story you're going to get.  

cinderella boy has much of the same atmosphere as ryoko's case files. the anime's about a poor man and rich ojoo-san running a detective agency together. there's interesting cases, about the same amount of action, but otherwise the main story is different enough that you won't find it a repetition of any other detective series. 

Something similar happens in Cinderella Boy, the two main characters (Ranma and his partner Rera) end up in a car accident and, to be able to survive, both of them have to live in a single body; one during the day and the other one during the night.