In a future-based disaster-ridden city with an enormous gap between the rich and the poor, it is hard to tell which humans are walking around with cybernetic body parts. This makes Roy Revant's job as a renegade bounty hunter/bodyguard-for-hire even more difficult. When a young girl with unbeliveable strength rescues him from a particularly dangerous criminal, Roy realizes that perhaps help can be found in the strangest of places. Joining together with a few others, they engage in a battle to find out the truth behind the giant conglomerates that are supposedly serving mankind and making life better.
Solty, an android who has lost her memory, has escaped and is being hunted by the RUC Security Bureau. She encounters a bounty hunter named Roy who adopts her as his daughter after being hired as a bodygaurd for Miranda

Amou Academy is an enormous educational establishment that boasts of 200,000 students and a gigantic campus that is actually its own city. Sakai Anzu is one of two members of the Detective agency operating on campus and is a normal high school girl. On the other hand, the other member, Yuri, is something out of this world. Yuri normally looks like a young girl but she is able to use sorcery to transform herself into a more mature appearance where she gains the ability to solve mysteries and crimes. There is one drawback however and it is that in that state, Yuri needs sexual energy to use her deducing skills and Anzu is there to give into her erotic needs.