異い界かい

noun

other world; spirit world; supernatural realm

Refers to a world beyond the ordinary human realm, often used in fantasy, horror, or spiritual contexts. Can imply an afterlife, a parallel dimension, or a realm of spirits and monsters.

• その神じん社じゃは異い界かいへの入いり口ぐちと言いわれている。

  That shrine is said to be an entrance to the other world.

• 彼かれは異い界かいから来きた怪かい物ぶつと戦たたかった。

  He fought a monster from another world.