Daughter of the Underworld

Hadley is the daughter of Hades, she grew up on The Isle of the Lost being raised by her father knowing that Mal was her half-sister and when she snuck out of her fathers lair to meet the purple haired fairy Mal laughed and told her to get lost which angered the demigod.

Sick of her sulking around the lair Hades sent her to Serpent Prep which is where Hadley met Uma and the two bonded over their hatred for Mal and formed the pirate crew along with Gil and Harry with Hadley developing a crush on the son of captain Hook and the two often spent their time friendly flirting with each other but both ignoring the warm and bubbly feelings they both felt towards each other since villain kids weren't allowed to feel love