Board Thread:General Discussion/@comment-28911833-20160703050910/@comment-28911833-20160703211652

we need more information on how demon swords work in general and how the use of a demon's heart as opposed to the sealing of a whole demon changes the functionality of the sword. if shura knew something in regards to the danger rin faces when wielding the sword (him dying if it breaks) i'm sure she would have said something. the only one i can think of who might give us some answers is Lewin.