Yashahime: Princess Half-Demon, Vol. 4 (manga)

While the trio continues marching westward, they run into a slimy beast that kidnaps princesses! Coming to their aid is Tokichiro Kinoshita, a cunning peasant who will one day become a historical legend, and he devises a clever - and embarrassing - plan to lure the monster out of hiding. Then, the girls battle the demon and witness the sorts of tricks that Inuyasha himself would pull off!