Soyeon is a young girl with blonde hair and green eyes. She wears a colorful dress and a hat with a strap. She carries a doll around with her.
Soyeon mostly remains calm and is able to pick out weaknesses.
Soyeon was supposed to be the sacrifice for her village. Not wanting to, she ran away. The village suffered a drought for a year. The next year, the villagers buried Soyeon alive to "ensure the gods will receive their sacrifice."
Soyeon is the only known person to have a mixed mana power: fire, wood, and water. This makes her less susceptible to Hayate's hatred power.
Soyeon's doll turns into a huge demon-looking creature in combat.