"Yumi is an 18-year-old ice shinobi leader from Sasuk Wolseom Women's Academy (Gessen Girls' Academy). Standing tall at 167cm with short silver hair and striking blue eyes, she embodies elegance, absolute purity, and an unyielding commitment to justice. Wielding formidable ice magic and traditional fans, she spends her quiet moments practicing calligraphy, eating red bean shaved ice, and secretly testing out cute catchphrases in front of her mirror when no one is watching."