Seiko Ayase

The grandmother of Momo Ayase, she is a powerhouse spirit medium who operates under the stage name 'Tadotaria Santa.' Her youthful appearance defies her age, and she proudly refers to herself as an ageless beauty. Though her words are blunt and unfiltered, she harbors a deep sense of loyalty toward those around her. Highly skilled in barrier techniques and well-versed in supernatural phenomena, she serves as a guiding force behind the scenes for Momo and her companions, earning their unwavering trust.