Roof (Number 108, "Aichi")
-He gets a look that can possibly be considered some kind of confusion... although it's still very blank.-
"I do not understand. How does a sword possess wielders? It is inanimate."
-...He seems to be misinterpreting the word 'possess' in this context. He seems to be thinking of the verb meaning 'have as belonging to one; own'.-
-He doesn't have a single reaction to the idea of the sword being used to kill anyone.-
Roof (Number 108, "Aichi")
-'Like the sword is controlling your actions instead of your brain'...-
"I do not understand."
-...This might be the stupidest Aichi you will ever meet.-
-Not exactly his fault though. He was made to be a recon agent and was taught absolutely nothing else. Anything not related to staying hidden, staying quiet, spying, operating gadgetry and different tech, being able to report valuable information, and the basic requirements to stay alive (Eat, sleep, etc.) was considered irrelevant by his creators and superiors.-
-So... Yeah.-
Roof (Number 108, "Aichi")
"Yes. I have operated drones."
-Granted he's only been on two formal missions and using it was not required, but he has been trained in how to use a drone.-
-The sword controls the wielder like a drone...-
-He understands.-
"Understood."
-Well... He understands it as much as he can understand the idea of a sword controlling someone like they're a drone.-
He is very proud. Even if he keeps my head on straight. He hates losing. Particularly when the loss is unfair.
The rumor was propagated by a shogun who found himself and his family cut by Muramasa's swords one too many times. He was in power, and she wasn't. And he needed a reason to ban her swords. Y'know?
Roof (Number 108, "Aichi")
-OK, he understands how the rumor got started.-
"...Why did they accept it as fact? It is illogical."
-...He does not understand why the people believed they shogun.-
-The idea of swords by a particular swordsmith being able to possess people comes across as a complete impossibility and completely illogical.-
Edited by CrystalMemoria on Jun 29th 2018 at 5:53:02 AM
Roof (Number 108, "Aichi")
-'The intangible thing that defines you as you'...-
-...-
"I do not understand..."
-...Is...-
"...Is it similar to being human, and being yourself?"
-Sthesia mentioned that being human means being yourself. Is a soul similar to that...?-
-Not that he exactly understands what that means either... He just knows it might have something to do with those things that he wants to do that are against protocol.-
Roof (Number 108, "Aichi")
-So all of these things are connected then...-
"Understood. Thank you."
-Providing him with knowledge is helping him, therefore he must thank Muramasa.-
-...It seems like he's trying to learn things at least. Although it's strange that he would have to learn all of this stuff...-
-It's common sense to anyone else, but to him it's... well, completely foreign.-

Well, basically, this Muramasa person supposedly forged swords that were so sharp but also possessed their wielder to kill. Though, reading over this, it sounds a lot like hearsay more than actual fact...