Seiko Ayase

Lore & Background

Seiko Ayase is the grandmother of Momo Ayase, though she appears to be in her 20s. She works as a spirit medium, using her vast knowledge of curses and yōkai to exorcise spirits. She lacks innate supernatural abilities but compensates with enchanted artifacts and the power of a local deity, which is effective only within the city. Her personality is brash and aloof, and she is susceptible to flattery. She refuses to admit that aliens exist, despite the supernatural events around her. Seiko hosts a television program where she performs genuine spiritual feats like fortune-telling, which has made her surprisingly wealthy. She is deeply protective of Momo and her allies.

In Their Own Story

Seiko's role in the series begins as the guardian of Momo, having influenced Momo's belief in ghosts and the supernatural. After Momo cursed her out for this influence, their relationship became strained. When Momo and Okarun defeat Turbo Granny, Seiko seals the yōkai's spirit inside a maneki-neko doll. She then agrees to aid Okarun and Momo in finding Okarun's testicles in exchange for Turbo Granny receiving her powers back. Later, when Jiji moves in after his parents are hospitalized, Seiko takes him in. She also takes in Vamola after the alien is subdued, forming a sisterly bond with Momo. Throughout, Seiko uses her knowledge and artifacts to support the group, though her refusal to acknowledge aliens creates friction.

Reader's Guide

Seiko is characterized by her brash and aloof demeanor, often frustrating others with her susceptibility to flattery and stubborn refusal to believe in aliens. Despite this, she is deeply protective of Momo and her allies. Her abilities rely on enchanted artifacts and the power of a local deity, which only works within the city. She hosts a television program where she demonstrates genuine spiritual feats like fortune-telling, which has made her surprisingly wealthy. Key moments include sealing Turbo Granny in a maneki-neko doll, taking in Jiji and Vamola, and using her knowledge to aid the group. Her refusal to admit aliens exist is a recurring point of conflict.

Did You Know?

• Seiko's youthful appearance suggests she is in her 20s, despite being Momo's grandmother.
• She hosts a television program where she demonstrates genuine spiritual feats such as fortune-telling.
• Seiko refuses to admit that aliens exist, even though she deals with supernatural entities.
• She sealed Turbo Granny's spirit inside a maneki-neko doll after Momo and Okarun defeated her.
• Her power from a local deity is effective only within the city limits.