A demigod is the child of a immortal ( a god or goddesses. ) they are half immortal and half mortal there also called half mortal half god or goddesses. they are born and raised in the mortal world but could be transformed immortal or be taken by a god or goddesses to Olympus. they bleed just like humans and die like humans but can have some type of abilities because of having some or a lot of immortal parentage or ancestors that are immortals. the more divine they are or the more divine people they are related to the more powerful they could be.
powers every demigod should have.
enhanced body - all of there physical traits like the gods are enhanced but to a much lesser degree sense they are human. so then they are just more stronger,faster, have more endurance and have more agility then a normal human.
extra divine powers - it is extremely rare but some demigods could be born with some godly power like weather control, water manipulation, and divine beauty. it is always a power in the domain of the parentage.
A demigods weaknesses
Mortality - a demigod is still mortal or half mortal so they don't live forever.
death - because they are mortal a lot of things can kill them like hunger, suffocation, death in war, and more