Hey all, my latest theory regarding the whole Rum arc. Is that most likely Hyoue & Rumi are not Rum, I cannot say I have conclusive evidence, however the mere fact that they met during the camping incident, and Rumi's confrontation with the culprit, made me feel uneasy about how Kuroda reacted. If one was Rum, the other knew, if the other person did not know, it is most likely that Rum (or them) was not in the Haneda's scene, because their level of intelligence (that may surpass Conan's) would lead them to figure the identity of Rum at the crime scene. Rumi (If she is Rum), would know Kuroda's purpose is to spy on her, and therefore would take actions to escape any chance that would lead to her identity. Kuroda (if he is Rum) would not confront Rumi, who is related to Haneda's mystery, without jeopradizing her suspisiousness towards him. If Kurodoa is Rum he would rather avoid Rumi, who might deduce who he is. If both did not know the other, I doubt Rumi would show off her skills in front of Kuroda (to her he might be Rum). Kuroda would not confront Rumi (who to him might be Rum), on the ground that he is watching over, and keeping her in a school where young lives at stake. On this basis, Rum is neither for most chances, unless proven otherwise.
Kanenori, is a great candidate. But for a second in hand to command a large syndicate as big as BO, and the desire to remain unknown, would suggest he would rather attract less attention to himself, even if he tries to hide in plain sight. And his wholesome intention to become a disciple of a famous detective (Kogoro), would inspire others to look into him, such as Conan, and his quirky look, would raise questions, specially if Rum, who most likely knows about the descriptions people say about him, would mind fitting the image or a characteristic in a way or another in public. Rum would most likely, appear in the three different ways he is described, only inside the BO, while in public he would/should change his appearance to avoid any traces of him. If he have a damaged eye, he'd rather hide it or damage both eyes, if he seems feminine, he'd rather appear ambiguous looking, the same goes for a strong man.
Rum, most likely, has not appeared in whole appearance to the people who described him. The BO agents, described his characteristics, based on his approach, which would raise the question of the eye problem. If all agreed, that Rum have an eye that is prosthetic or damaged, it must mean that they saw him. Yet, it might be a way of Rum to throw off descriptions of him by giving different traits, with one similar characteristic, so when he is investigated, it would mislead the investigators in something that did not exist. Again, the descriptions, have transferred to Haibara who relayed them to Conan, (Who btw, didn't even bother telling Conan Anokata's phone number, even though she was not surprised to know he figured it out), in accordance with her intentions to mislead Conan away from the BO so he would not be a matter of concern. Rum's awareness, like Gin about Sherry's escape from the BO, and that she must have had help, before her assumed death, would mean she told someone info on the BO, and Rum's different descriptions would've made their way into a stranger.
Iori Muga, to me personally, is most suspicious. Like said above by MeiTanteixX, his concern over time, would relate logicaly to Rum. He has no worries about people finding out his time calculations, and he should not. Since only the people he told that time is precious, should be matter of concern to him, like Amuro, however he considers Amuro a top ranking BO agent. And following the theory of MeiTanteixX, about G & UMA, which I find to be very possible. I would not be surprised if Muga turns out to be Rum,.
Another thing to consider, that Kuroda is not Rum, is the fact that he is Rei's superior. While he may still be a suspect, he would know about the agents awaiting at Kudo's residence during the Scarlet Arc. Thus, he would question the whole Akai's conversation with Rei over the phone, and the PSB that chased him, would lead to the BO's figuring out his whole fake death incident, if he is Rum.
Kanenori, if Rum, would be a compromise of concealment, to be known to Kogoro, Amuro and others, as a disciple to Kogoro, with the looks he has, and the possible chance some would know of his descriptions following Haibara's escape from BO, even before her assumed death.
Rumi, while as mysterious as she is, would not throw her mysterious character to be a matter of study and observation to others, if she is Rum, not to Kuroda who is in police, nor to Conan, whose skills of deduction, she know of. I cannot imagine a scenario where the 2nd in command, would not mind be around someone who can investigate him, unless he wants to.
Rum, is in rush. As evident by his message to Amuro "Time is Money", mostly the general concept is that Rum's current objective is to find out any spies within the BO, while staying hidden. He/She, is currently active, while maintaining the order of BO. means he/she must balance between the two. As to why he is in hurry, it may be due to; 1. following a lead to find something out before it becomes apparent or escape. 2. To rush others to fall victims of time and therefore revealing their true allegiance, 3. to actually win something over in the least time possible.
Since time is of the essence to Rum, I've been wondering if it has anything to do with Anokata himself. Since Anokata(Karasuma), is related to the whole time concept, raising the dead, over half a century of existence. I wonder if something is up that may actually be the reason why Rum is in a rush. Which would lead back to the Muga's obssession with time and seconds, and his attempt to calculate time to the second for fullest time employment. ..