The concept of death as a sentient entity has existed in many societies since the beginning of history
In Chinese mythology, Yanluo (simplified Chinese: 阎罗; traditional Chinese: 閻羅; pinyin: Yánluó; Wade–Giles: Yen-lo), is the god of death and the ruler of Di Yu (Jp. 地獄 Jigoku, Ko. 지옥 Jiok, "hell" or the underworld). The deity originated from Yama in Hinduism and was adopted into the Chinese pantheon and eventually spread to Japan as Enma-O (閻魔大王) and Korea as Great King Yŏmna (염라대왕). He is normally depicted wearing a Chinese judge's cap and traditional Chinese robes in both Chinese and Japanese depictions.
In Korean mythology, the equivalent of the Grim Reaper is the Netherworld Emissary (저승사자). He is depicted as a stern and ruthless bureaucrat in service of Great King Yŏmna (염라대왕), who escorts all -- good or evil -- from the land of the living to the netherworld when the time comes.[4]
In Japanese mythology and in the Kojiki, after giving birth to the fire god Hinokagutsuchi, the goddess Izanami dies from wounds from his fire and enters the perpetual night realm called Yomi-no-kuni (the underworld) that the gods retire to and to which Izanagi, her husband, traveled in a failed attempt to reclaim her. He discovers his wife as not-so beautiful anymore, and, following a brief argument afterwards, she promises him she will take a thousand lives every day, signifying her position as the goddess of death.
There are also death gods called shinigami, which are closer to the Western tradition of the Grim Reaper. Shinigami (often plural) are common in modern Japanese arts and fiction and essentially absent from traditional mythology.
