Blade of the Immortal: Demon Lair — Dark Horse Manga
Issue: #1
A massive, 280-page volume brings readers back into the "Badger Hole" with Rin and Doa, as they make some shocking discoveries and finally find their missing companions! When Rin bumps into Toraemon, the unfortunate assistant to crazy Doc Burando and witness to his disgusting "immortality experiments," it seems that breaking Manji free will be a breeze. Not so. Getting Manji out of Edo's nightmari...
Creators: Hiroaki Samura
Characters: Isaku Yasonokami, Giichi, Rin Asano, Hyakurin, Manji, Doc Burando, Dōa Yoshino