Bulgasari (불가사리)

The heavy trunk of a bear, the sinuous trunk of an elephant, the white eyes of an ox, the claws of a tiger—and needle-like fur bristling across every inch of its body. The Bulgasari is not the shape of any one beast, but a creature into which many fears have been sutured together. Its very name is a verdict. *Bulgasal* (不可殺)—that which it is impossible to kill.

This thing eats iron. A single nail, a single pot, a single blade. The more it consumes, the larger it grows, and the fuller its belly, the greater the iron it craves. Starving it does not make it disappear. It only makes it search more violently.

Late in the Goryeo period, a rumor seeped out of an alley in Gaesong. A woman had shaped a small figure from grains of cooked rice and stood it in the corner of her room, and one night it moved of its own accord. First it ate needles, then farming tools, then the iron bolt of the city gate. The figure grew, and by that time no weapon could so much as graze its hide.

Sword, arrow, spear—none of them worked. But fire was different. The Bulgasari is said to recoil before flames—not to die, but to recoil. The distinction is not a small one.

Yet the Bulgasari was also held to be a warding presence. It chews up nightmares and swallows them whole; it devours the breath of calamity. The people who carved its likeness into the doorposts of their homes did so not out of fear, but because they wished to have this thing on their side.

Even today, it is said that iron objects vanish without a trace from the storehouses of old villages. People call it the work of thieves. But what remains around the things that have disappeared—is a single hair, no thicker than a needle.