A son or daughter of an immortal and a mortal is considered a demi-god. If you want to understand more then take this quiz and find out.
I don't look bad
A little grumpy
Calm, like water
A little stormy when angry
Clarisse
Percy
Thalia
Nico
Storms
World Wars
The latest fashion
The beach
Pink
Blue
Yellow
Red
Any normal weapon
Trident
Lightning bolt
Helm of darkness
Lots of water
Powerful and light
The nicest cabin
All the weapons I can find
Sunset
Thunder and lightning
Dark and gloomy
Nice and sunny
Fish
Hellhound
Boar
Eagle