Philinnion

Philinnion (フィリンニオン, Firin'nion), also known as Children of Corinth (コリントの子供, Korinto no Kodomo), is a supernatural humanoid race that inhabits the Earthland. Like many of the lesser known beings which make the Earthland their home, the Philinnion are undead. However, unlike just about every other type of undead creature, Philinnion are praised for having gone through Perfect Resurrection (完璧回生, Kanpeki Kaisei), due to the fact that they retain the physique they possessed prior to dying. However, the process is more flawed than its credentials indicate, as the resurrected Philinnion's psyche will change considerably upon being resuscitated. While just about any humanoid creature, regardless of race, can become a Philinnion, only individuals that are not yet physically mature are eligible candidates for the process of transformation.

Biological Characteristics
As far as undead creatures go, Philinnion are outsiders who possess little to no similarities their 'cousins', seeing as their bodies are virtually indistinguishable from regular beings belonging to the species they used to be. They are bound by their bodies physical needs as they were in life, which makes it easy for them to initially blend in with the society they belonged to pre-mortem. Despite possessing convincing physical characteristics, the Philinnion have nonetheless been changed by death and will be changed individuals once they transform; otherwise, they would not have been classified as undead at all.

As far as physical changes go, only two known processes take place once the specimen is converted to a Philinnion. The first, and most notable at first, is the complete loss of pupils. The irises of a Philinnion take up the majority of their eyes, causing them to seem distant and rather empty. In human-born Philinnion, this causes them to seem blind, but contrary to this impression, they can see.