Momo Ayase's House

Lore & Background

The residence is defined by the presence of Momo’s grandmother, Seiko Ayase, a spirit medium who possesses vast knowledge of curses and yōkai. Despite lacking innate supernatural abilities, she uses enchanted artifacts and the power of a local deity—effective only within the city—to exorcise spirits. Brash and aloof, she often frustrates others, particularly due to her susceptibility to flattery and her refusal to admit that aliens exist, but remains deeply protective of Momo and her allies. She also hosts a television program where she demonstrates genuine spiritual feats such as fortune-telling, which has made her surprisingly wealthy. The interior reflects this duality, blending modern living spaces with traditional Shinto elements. A specific shrine area within the home acts as a focal point for exorcism rituals and spirit communication, making it a dangerous zone for unprepared individuals but essential for Momo’s work. The house stands as a testament to Momo’s heritage, grounding her abilities in family tradition. Throughout the narrative, the house remains a constant anchor. While the characters travel to various haunted locations or alien territories, this home is where they return to process their experiences. It represents the boundary between the mundane world and the extraordinary forces threatening it.

In Their Own Story

The front door creaks open as Momo steps inside, dust from the street still on her sneakers. She expects silence after a long day of fighting spirits, but finds her grandmother in the kitchen, humming while stirring a pot of stew. On the table sits a half-eaten strawberry and a strange glowing artifact from an alien encounter earlier that day. Grandma glances up without turning around, asking if Okarun is coming over for dinner, treating the cosmic debris as casually as leftover vegetables. Momo sighs in relief, knowing that no matter how dangerous the outside world becomes, this kitchen remains a place where she can just be a granddaughter.

Reader's Guide

The interior of Momo Ayase’s residence radiates a unique blend of mundane comfort and latent spiritual pressure. To an outsider, it is simply a quiet home in a residential neighborhood, but for the protagonists, it serves as the primary sanctuary between battles with ghosts and aliens. The grandmother holds absolute dominion over the space; her presence alone can suppress hostile spirits that might otherwise invade the premises. Visitors like Okarun understand the unspoken rule: do not disturb the shrine unless necessary, and never underestimate the matriarch’s capabilities. This location is pivotal during early investigations where exorcism rituals are planned or debriefed after close calls. The traditional architecture features wooden beams and sliding doors that seem to echo with past spiritual activity. While modern appliances exist, the heart of the home remains rooted in tradition, specifically the altar area used for summoning or binding entities. When the plot shifts toward high-stakes supernatural threats, this house often becomes the last line of defense before things escalate further into the unknown cosmos or spirit world.

Did You Know?

• Seiko Ayase, Momo's grandmother, hosts a television program where she demonstrates genuine spiritual feats such as fortune-telling, which has made her surprisingly wealthy.
• Turbo Granny is sealed inside a maneki-neko doll at the house after being defeated by Momo and Okarun.
• Seiko uses enchanted artifacts and the power of a local deity—effective only within the city—to exorcise spirits.
• The house serves as the home base for the 'Family,' a group of kids led by Seiko dealing with the supernatural.
• Seiko refuses to admit that aliens exist, despite the group's frequent encounters with them.