Yuuko let out a chuckle. "There are some, say... spiritual beings, beings of non-human nature, that exist in the world. They live in the same world as us, and thus must coexist alongside humans. I'm sure you know how well most people would take their presence, much less know they truly do exist, and because of this they use varying ways of disguising themselves. Some of them can even surpress that 'aura' that gives away they are of a spiritual or non-human being. You, however," she gestured at Sakurazaki. "let that aura spill all over the place. I picked it up as soon as you walked in."