Yomi or Yomi-no-kuni (黄泉, 黄泉の国, or 黄泉ノ国) is the Japanese word for the land of the dead (World of Darkness). According to Shinto mythology as related in Kojiki, this is where the dead go in the afterlife. Once one has eaten at the hearth of Yomi it is (mostly) impossible to return to the land of the living. Yomi is most commonly known for Izanami's retreat to that place after her death. Izanagi followed her there and upon his return he washed himself, creating Amaterasu, Susanoo, and Tsukuyomi-no-Mikoto in the process.
https://en.wikipedia.org/wiki/Yomi
Yomi or Yomi-no-kuni (黄泉, 黄泉の国, or 黄泉ノ国) is the Japanese word for the land of the dead (World of Darkness). According to Shinto mythology as related in Kojiki, this is where the dead go in the afterlife. Once one has eaten at the hearth of Yomi it is (mostly) impossible to return to the land of the living. Yomi is most commonly known for Izanami's retreat to that place after her death. Izanagi followed her there and upon his return he washed himself, creating Amaterasu, Susanoo, and Tsukuyomi-no-Mikoto in the process.
