"Hm...so you say that your contraption can detect portals just like that?" Yukari said with an interested look, deciding that she'll find out more about this for now. She returned the boundaries of perception for Natsu to normal, and she let him go. Something about this TARDIS seemed familiar to her, since Yukari did spend her time outside Gensokyo for these interesting things never found in the sealed away world in the first place. "Apologies if I am sudden with my questions, but I feel like I have seen the TARDIS before back several hundred years ago...am I wrong to assume that you are a Time Lord?" Yukari asked the Doctor, knowing a bit on where he came from,"And so I am not asked about myself later on, I'm Yukari Yakumo, the Boundary Youkai of Gensokyo."