Humans are mortal beings that were created by God.
It is unknown exactly when human beings began existing. It has been mentioned by Lucifer that after creating Heaven and angels, God "started going into the garage" and began his project called "humanity" which caused a rebellion and the beginning of their conflict with Goddess.
Humans are mortal beings that populate Earth. Each human possesses a soul, which upon death will go to either Heaven or Hell. Those who have lived a wicked life are sent to Hell, while those who were righteous go to Heaven.
Some angels are able to resurrect deceased humans and return their souls to their bodies. After resurrection, humans are again mortal beings, vulnerable to death.
- Mortality - Their physical strength wanes once they reach old age. They are vulnerable to diseases, and any form of physical harm.
- Angels/Demons: Supernatural species and celestial beings are physically far more powerful then humans and could easily hurt and kill them. However, angels are forbidden by God to kill humans. (Though Lucifer shows they CAN kill; it's just a rule, not an absolute restriction on their choices.)
- Children likely have more of a chance of getting into Heaven, as they haven't lived long enough to become twisted and evil, unless it's naturally who they are.