At a quick glance, these demons appear to be
simply gigantic caterpillars. However, upon closer
inspection their human-like faces, laced with
inhuman mouths, become apparent along with the
rows of eyes that adorn their backs. The creatures
were the offspring of a demon, Maimai'Onba, and
a human mating. That union resulted in creatures
that were able to take on the shape of normal
young girls, yet their true visage was more insect-like
in nature. Despite their human origin, the Hanyo
still hungered for flesh from other people. To
appease the infant monsters, their parents watched
over a temple which to the public was an orphanage
for abandoned children. In reality, the place
was a feeding ground for the demons who consumed
the human children brought there. Thankfully,
the temple was struck by lighting that caused
it to burn to the ground. With their feeding ground
gone, the demons had to resort to preying on stray
visitors to the area, two of which happened to
be Dororo and Hyakkimaru. After learning of the
feats of Hyakkimaru, the creatures quickly attempted
to flee once confronting him but were slashed
down. The remaining Hanyo, some of which were
still dormant in their eggs, were killed by the
local townspeople after Dororo revealed the creature's
plot.