The Alien Demigod

Y/n Kirby Tennyson 15 year old kid, It started with an alien device and what it did... hes been living all alone in his RV because his Grandfather Max and his cousin sister Gwen are dead, due to the same meteor that gave him powers, his mother (Hecate) was supossedly a goddess of magic, he continues staying alone until a group of girls wearing silver find him....