Demigods

Demigods are the children of Gods and Humans. Despite the majority of gods already having immortal spouses, they are known to have numerous affairs. The Gods themselves stay in power by using their children as Heroes, to do quests, they themselves are too lazy or unwilling to do. Many of these Heroes go onto become gods, are famous for millennium. Some famous ones include: Hercules, Perseus, Percy Jackson, Thalia Grace, Nico di Angelo, Annabeth Chase etc.

The Gods are generally reluctant to claim their children, because it reveals they were unfaithful and provides embarrassment in front of their family. Despite this, they prove that they still love their children, despite the consequences. The Demigods, once they reach a certain age, have a distinct scent that attracts monsters. Thus for their safety they are taken by satyrs to Camp Half-Blood, in Manhattan to train them and keep them safe. It is unknown what happens to demigods that don't live in the USA, but presumably they have a similar system.

After the Second Olympian War, Percy Jackson required all of the gods to recognize all of their children and have cabins at camp.