鬼門

Noun

 * 1) demon gate; gateway through which the ghost comes and goes

Etymology
Literally "demon gate". Derives from Chinese texts and the belief system of, wherein the northeast is considered to be the direction in which negative energy concentrates and demons come and go.

First cited in Japanese to the early 1200s.

Noun

 * 1)  the north-eastern direction
 * 2)  a weak point, an undesirable place or thing or person
 * 1)  a weak point, an undesirable place or thing or person