Jules, like Bow, had an affinity for magic, particularly a desire to become a powerful black mage, and being denied an opportunity to study in Sharlayan when her siblings Florienne and Bow got to led Jules to a rage fueled pursuit, and in attempting magic above their skill, they ultimately died

which lastly leaves the baby of the family, Florienne, who followed in Bow’s footsteps to Sharlayan but his passion was a ruse. he ran off to be a pirate LOL