Rivalry

Astrid's family has been after the throne of Berk since it's founding. Finn Hofferson was intended to take the chiefdom, but his unfortunate fate with the Flightmare tarnished the family name. Looking for redemption, and with parental pressure, Astrid takes it upon herself to put Hiccup in his rightful place, until he suddenly thwarts her every attempt to rise in Dragon Training.