Hae, the personal summon of Tōki.
Flies (蠅, Hae) are insects of the order Diptera (from the Greek di = two, and ptera = wings). Flies are exceptionally fast when flying and can easily avoid attacks. All flies use Wind Release techniques, but some are born with a unique nature, Miasma Release, that allows them to breathe poison.
Flies, like Turtles and Whales, have a sacred ground, where they reside without being disturbed by outsiders, this place being the Hinshi Woods. Currently in the fanon series of Naruto, only one fly has been revealed, a giant fly, who was tamed and made a blood contract with Tōki.