The mortals of this world know little of the gods. One of the things they do know is that the gods have a penchant for having children with mortals. On a rare occasion, these 'Demigods' perform an act so great that the gods reward them, raising them to godhood alongside their parents. On other occasions, a Diety may bless a Demigod or mortal, granting them protection from natural

The divine world is dead. The Rise of quirks ensured the fall of Divinity, and as a side effect, Percy Jackson is born as the last Demigod in existence, but now able to blend into the world, disguising his powers as a quirk. This world is far from safe however, and a lack of divine threats, does not mean a lack of threat at all. Eventual PercyxNejire