Shalsha resembles her sister Falfa but has light green, medium-length hair tied into twin tails with light blue bands, and blue or violet eyes. She wears a strapped dress slit at the sides over an off-white pink short-sleeved undershirt and knee-length bloomers.

Unlike Falfa, Shalsha is reserved and introverted, speaking only when necessary and often using precise, technical language. Despite her intelligence, she has the emotional maturity of a young child. Initially, she was single-mindedly focused on seeking revenge against Azusa, dedicating fifty years to mastering the “Smite Evil” spell without considering the consequences. Her determination and focus are notable traits. However, after abandoning her revenge, Shalsha grows to enjoy and cherish the time spent with her sister and mother.

Shalsha, the youngest daughter of Azusa, is a shy and reserved girl with remarkable intellect and talent in various scholarly and artistic fields. Born from the combined spirits of the slimes Azusa had defeated, she initially directed her intelligence toward creating a spell to kill her mother. However, the intervention of her sister Falfa and Laika, combined with the spell’s complexity, prevented her from succeeding. Despite this, Shalsha was welcomed into Azusa’s household and became part of the family.