Reality
"Oh?" Kirisho asked surprised, "Why would you want to know about that?" She inquired, and Eisen just continued to stare at her. "The Angel I've been working with is going to tell me whether I can actually explain it to you or not, so just wait for that a little while. For now, trust me and please just tell me what that 'Otherworld Disease' is." The old man told her with clear determination in his voice, and the Mist Spirit slowly nodded her head.