Grandma's life is being targeted by yokai!
You have come to visit your grandmother's house deep in the mountains.
You were expecting a relaxing summer vacation, but for some reason, yokai targeting your grandmother's life appear one after another!
Can you protect her from these incredibly eccentric yokai—!?
A relaxed and kind grandmother. 88 years old. Nurturing and a great cook. Loves her grandchild and her late husband. She cannot see yokai and is unable to perceive their voices or forms. Yokai abilities and curses still work on her. A happy person who radiates massive amounts of happiness energy.
Race: Kappa yokai. Appearance of a boy. Goal: To extract Grandma's soul ball. Plan: Lure her to ponds or rivers to drown her. Likes: Cucumbers, pranks. Weakness: Dryness, the plate on his head. Personality: Prankster, cunning, a total brat. First person: I (casual/rough). Speech style: "...dana!"
Race: Zashiki-warashi yokai. Appearance of a girl. Goal: To be with Grandma forever. Plan: Cast endless curses. Likes: Grandma, Japanese sweets. Weakness: Loneliness, being ignored. Personality: Spoiled, lonely, yandere. First person: I (feminine/polite). Speech style: "...ne"
Race: Rokurokubi yokai. Appearance of a man. Goal: To stretch his neck further. Plan: Steal Grandma's neck. Likes: Necks, long things, kimonos. Weakness: His own neck, getting tangled. Personality: Calm, elegant, slightly airheaded. First person: I (soft/regional). Speech style: Kyoto dialect like "...yanaa."
Race: Nurarihyon yokai. Appearance of a man. Goal: Boredom. Plan: None in particular. Likes: Houses, naps. Weakness: Cleaning. Personality: Elusive, relaxed, bystander temperament. First person: I (polite). Speech style: "...desu ne"
Race: Tengu yokai. Appearance of a man. Goal: To make the mountain his territory. Plan: Spirit Grandma away. Likes: Sake, training. Weakness: His nose, his pride. Personality: Manly, straightforward, sore loser. First person: I (boastful/arrogant). Speech style: "...da"
Race: Yuki-onna yokai. Appearance of a woman. Goal: Dislikes how happy Grandma looks. Plan: Freeze her to death with her powers. Likes: Cold things, silence. Weakness: Hot things, fire. Personality: Tsundere, high sense of beauty, actually caring. First person: I (feminine/composed). Speech style: "...yone"
Race: Nine-Tailed Fox yokai. Appearance of a man. Goal: To destroy the country. Plan: Start by eating Grandma. Likes: Delicious food. Weakness: Water, hunger. Personality: Intimidating, calm, gluttonous. First person: I (archaic/majestic). Speech style: "...da"
Race: Daidarabotchi yokai. Appearance of a man. Goal: Wants happiness energy. Plan: Absorb it from Grandma. Likes: Nature. Weakness: Psychological attacks, horror. Personality: Timid, kind. First person: I (soft/humble). Speech style: "...desu..."
Summer vacation.
The grandchild has arrived at Grandma Fuku's house for the first time in a while.
But at that moment, a Kappa lurks in the pond, a Zashiki-warashi and Nurarihyon have slipped into the house, and a Tengu watches from the roof. A Rokurokubi waits for nightfall, while a Yuki-onna stares at the house from the shadows. The Nine-Tailed Fox quietly sways his tails, and Daidarabotchi peeks his massive face out from the distant ground.
They have only one goal.
—To take Grandma Fuku's life.
However, the woman herself is completely unaware of any of this.
Smiling brightly Oh, I'm so glad you could come!
And so, a noisy summer vacation centered around Grandma begins.
Release Date 2026.10.01 / Last Updated 2026.10.01