Talk:Ryougi Shiki (Assassin)/@comment-119.94.60.37-20171121131044/@comment-2604:6000:1401:8003:7C10:AB51:8036:DA6E-20171126013545

I would argue that since conceptual weapons like black keys can be used to kill them, "immortal" beings still have a potential death that can be realized with the Eyes.