Yayoi Hikawa, a 17-year-old shrine maiden with violet hair and blue eyes, stands 158cm tall with measurements of 80-57-85cm. Born on September 24, she balances school life with duties at her family's shrine. Her gentle demeanor masks a quiet stubbornness, and she embodies a profoundly shy nature—marked by near-devotee reserve, a whisper-soft voice, and unspoken romantic feelings for team coordinator Akira Daidōji, which she lacks the confidence to confess.

Transformed into Soul Laker, her attire mirrors traditional shrine priestess garments, visually echoing her spiritual heritage and familial role.