Ranma and Rella opened an R&R detective office in Kirin (giraffe) Town, the world's capital of crime. They were being aimed during an investigation and were supposed to die in an accident. But they survived. Their bodies became weird. When the clock struck midnight, Ranma's body was gone and was transformed into Rella's. The two of them co-owned one body. What happened to both Ranma's and Rella's body? A mysterious female, Alice, appeared in front of Ranma. What's her objective? The curtain is now opened for the sparkling action comedy.