>"Okay, let's say Rinnosuke got possessed. What's going to be weirder and get more attention, Rinnosuke being greedy or some stranger being greedy? People will give the Rinnosuke a pass because they kinda know him, he just's changed. A stranger doing the same thing is way more suspicious, because you don't know 'em. So you're naturally going to be a lot more curious, and a lot less willing to let things go by because you don't know them. Also, you're a lot more likely to buy the excuses a person you know would give you. If I were Greed, I'd possess someone as soon as I could just to be able to push blame onto someone else, and to get away with things for longer."
>Celes nods. "There is some logic to what you say. And in addition, Greed will likely have learned about the other five Sins' defeat and return to the Keep, so he may very well have been seeking somewhere, or rather someone, to hide in. Even if the book has affected him as it seems to have done to Marisa, he will still act like Greed, and he will at least suspect that Tsumiko will be trying to find him. But he couldn't possess just anyone." The steward explains. "The Sins can only possess someone that has aspects of themselves similar to the Sins' nature. For example, Envy could not possess anyone who does not harbor deep, powerful jealousy towards someone else. Likewise, Greed would need to possess someone who had great desire for things, be it wealth, objects of great value, a harem of lovers, something for which they have a need, a passion, to possess. In nearly every instance, the Sin becomes the dominant personality. In some ways, this is not unlike possession by a ghost, or some other malevolant spirit or specter. They almost always act on the factor that brought them to their host, but they remain in charge of the body."
>"Does the host mind remain conscious?" Momiji asks.
>"Sometimes. It depends on the Sin, and the being they are possessing."
>"When a Sin holds possession of a living being, they can wield all the powers the Sin possesses, and usually all of the powers and abilities of the host." Celes continues. "But not always. The Sins are, at their core, minor incarnations of evil. They cannot wield powers of light, or good, holy magic, no matter who they possess. And there are certain beings that seem to be immune to this effect. Vampires, for one, and beings with especially strong souls, or souls that have been touched by light. Reimu Hakurei, for instance, would normally be immune to Sin's possession. The only reason Sloth was able to possess her on the Night of Rage was that Sloth caught her when she was asleep, with her defenses down."