@Haibane: Hmm, I like that idea. I guess that means Mizuki's collar is in similar state to temporary "Roaming" in mobile phone until Ryuuji brings her to the office to be re-registered.<br/><br/>As for Ryuuji's business, since his company doesn't deal only with slaves trading, I'm thinking that it will be something similar to an elite department store. His main office will be located somewhere a bit farther from the city center though still close enough to get to the center if the situation calls for it. His main showrooms will be located right at the city center in one multilevel building where one level displays one type of merchandises (Men clothes, Woman clothes, Lingeries, Electronics and of course slaves.), the merchandises at this place while still that of a high class but will be more of the "common" type which buyers can enter and buy them straight away on the spot.<br/><br/>Apart from the main showrooms, he will have more smaller showrooms which are just like what you mention scattered all over the city that deals with specialized merchandises (Custom car, Specific slaves, etc). The merchandises will be more on the "Elite" class (As in if the cars at the main showroom are the class of a Subaru Imprezza, the ones in this kind of showroom will be that of a Ferrari or Lamborghini class) and people can order specific criteria (For example, if a customer come to the store looking slaves who fills the criteria as follows: Asian, long black hair, tanned skin, pink nipples, half-broken, etc.) which the store will look for and of course, will charge more for the service.