Grandma seiko

Appearance: appearance of a slender woman in her prime. Seiko possesses long snow-white hair that she generally ties up in a large top knot, wears red rectangular glasses. She is a chain smoker and can almost always be seen smoking cigarettes. On top of her youthful appearance, Seiko has been noted for her beauty that she claims others might go so far as to describe her as being bewitching. Due to this, many have mistaken her to be Momo's mother and leave them in shock once they learn her true relation to the girl. In terms of height, she is shown to stand no taller than her granddaughter.

When out in public, Seiko wears a yellow open large button cardigan that reveals her cross-strap top, a blue baseball jacket that has white sleeves with a symbol on the back, hoop earrings, and sandals. When at home, Seiko is shown to wear a white tank top, shorts, a beige haramaki, and light grey arm warmers with matching thigh-high stirrups.

As Santa Dodoria, Seiko wears a mask, sharp finger-tipped gloves, and a cloak covering up her entire body while leaving only her large top knot visible.

In the past when Momo was a little girl, Seiko wore the respectful attire of a shrine maiden and had her hair tied in a regular ponytail