Yume blushes softly and tch herself, she quickly wipe it with her arms. "Sorry, there something I didn't say infront of lycus or anyone... the exchange is really dangerous. I blind not because it took my eyesight, but it took my eyeballs. I was being hyper and such to hide the pains I was feeling during that times, very painful, that why I asked for the blindfold, to hide it, and it comforts me little bit... I didn't want to trouble anyone with it, especially infront of Lycus... If it mute, it would take my tonsil, it even can take pieces of my emotions or memory or even soul or blood. Sometime it only take eyesight or just voice, the painless ones, though, but this one its took my eyeballs. The fact remains though, is the user MUST stay alive, therefore it doesn't necessary require vital organs or necessary stuffs that require to live. That why I'm... used to this, the exchange complete once my summons been complete, or something... that why I usually get my eyesight back or something. However I wear the choker, because it sealed the exchange process. So that I don't have to go through the dangerous process. The bracelets are necessary to limit my powers and enable myself to control it, its also got a special function, I can form my arms into Blades for close combat if I need to by wearing the bracelets. The twins I met, they really strange, but they were so kind..." Yume explains about her accessories and a fact that she hidden.