Celestials are former humans, hermits that can be divided in two classes: those who gained immortality and ascended to heaven, and those who attained enlightenment and entered Nirvana. Unlike humans who have daily hard lives on earth, they live in a carefree manner enjoying music, fishing and playing games. They usually descend to earth to say absurd things that trouble normal humans and then return to heaven. Celestials' bodies are poison to youkai, and beasts are awed by them. They can also fly and ride the clouds giving them a frightening, god-like appearance.
According to Komachi Onozuka, celestials are not truly immortal. Instead, they manage to defeat the shinigami that comes to collect their souls on a routine basis, continually extending their lifespan.
- Example: Tenshi Hinanai
Books and articles: