Rumor was, Irissa's mother used to be pretty strange way back before she just got up and left for the forest in the middle of the night. Nobody had seen her since, but nobody had forgotten either, because the daughter clearly inherited this strangeness. As her father was unknown, Irissa had since stayed with a distant cousin's family. At first things were tame enough - the girl stood out thanks to her beauty and natural gift to sway people, but the strangest things she'd shown were bouts of odd behaviour, dreams and atypical perceptiveness. As she grew, however, signs of considerable magic ability started to manifest.
Strange noises and lights were harmless, if irritating. Melting through the table with some sort of acid in a fit of anger was not. And controlling her emotions was becoming harder with each day - she'd been growing increasingly whimsical and prone to acting without thinking. The worst incident by far was an argument with one of her relatives, a girl two years older. One moment they were nearly yelling at each other, both too stubborn to back off, and then in a sudden rush of inspiration Irissa reached out with something she wasn't sure she'd had before and observed, stupefied, as her opponent froze and broke down into rushed apologies for starting a such a meaningless quarrel. The worst part? Irissa could tell that she fell far short of the full effect, lacking power to truly assert control.
Within an hour she packed her belongings and ran. Almost two weeks later, Shalelu found her deep in the woods dirty, scared and starving. That was the start of her sort-of-sibling-sort-of-apprentice relationship with the elven ranger.
Over the next year, Irissa got to know her big sister figure better as she learned to live off the land with a certain measure of comfort, and more importantly, learned to control her impulses, attempting to emulate her mentor's patience and discipline, if with limited success. Eventually, to Irissa's distress (at least until proper explanations were given), Shalelu had to leave her behind for a couple months to make one of her regular trips to other regions. Before setting out she suggested that the girl should stay at the Rusty Dragon in the meanwhile.
Until then Ameiko had been but a distant acquaintance, however over the duration of her stay at the inn the bard had quickly grown to be Irissa's second most favourite person, not in the least because she took upon herself to provide the basics of magic education the girl lacked to truly wield her abilities. It was clear that Irissa had considerable talent for enchantment magics, however, feeling uncertain about relying solely on something that drove her from home in the first place, she also took to studying illusions as something of an adjacent yet less invasive discipline, at least in her experience.
Magic instruction aside, she picked quite a few more mundane skills from Ameiko, in particular during her work at the inn - something she initially volunteered to do to repay her new friend's help, yet found herself enjoying. Merriment and admiration of the guests felt... appropriate and brought an odd sense of flattered satisfaction. Since then, even with Shalelu back at the town, Irissa continued to regularly visit the Dragon. She was, frankly, enjoying this new life, which is why the rumours of her friends possibly leaving Sandpoint behind alarmed her so. Still, this place would be meaningless for her without Shalelu and Ameiko, meaning that should they choose to leave, she was going with them.