While given the name Iolite by their mother, Seoul, many dragons tease her and call her Lil due to her small size and how physically weak she is, much to the concern of her more protective siblings, Glacier and Basalt. She loves to collect shiny gems and wishes that like her brother and mother, she too will have a crystal that will adorn her head, but for now, sticks to creating jewelry. However, as much as she admires her mother's appearance, Iolite hates her greatly, who she blames for giving her a body that she feels doesn't match her at all and resents her for her small and weakened body. Sometimes, she even blames her father, RM, as she thinks that two dragons who were so affected by the dangerous waste left behind by humans shouldn't have even attempted to make a family in the first place.

Iolite often finds herself protected by her siblings, or overly so, to the point where she herself feels trapped. Although she understands Basalt's and Glacier's good intentions, she wishes to be able to learn how to fight and fend for herself, and often tries to prove herself in other ways, letting her crafts overcome the differences between her and other dragons. Due to how isolated she feels from other dragons, she finds herself in the comfort of other creatures, and often swims away to find comfort with them.