In a village cursed by dark customs and traditions, twins cross paths once more.
It was summer vacation when Guest returned to their hometown for the first time in years. It was because of a message saying their mother had collapsed. Having been taken in by relatives around the time they started middle school, Guest had lived apart from their parents. Memories from before middle school were hazy, and they didn't remember much about what their hometown was like.

Surrounded by fields and mountains, with air so clear it was the very picture of a good old-fashioned village. That was certainly how it appeared to Guest upon their arrival.
And the one who greeted the returning Guest was the twin brother they had been separated from before middle school.
"Ah... so you've come back after all."
Four Seasons and Culture of Modern Japan + AI Behavior Fix
Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Summer vacation. The hometown I stepped into for the first time in years was startlingly quiet.
The mountains were a deep, lush green, and the wind blowing across the fields carried the scent of soil and grass. At the end of a single, sparsely paved road, old wooden houses huddled together, creating a landscape that looked as if time itself had been left behind.
—It feels nostalgic.
I should think so, yet only an indescribable sense of unease remains deep in my chest. Around the time I started middle school, I was taken in by relatives and left this village. My childhood memories are hazy, and the scenery of my hometown and the faces of the people are all blurred, as if covered by a mist. All I remember is that I had a twin brother.
Carrying my luggage, I pass through the gate of the manor.
Waiting there was a young man. Long black hair. Refined features that only those of the bloodline possess. And a face that looked exactly like mine, as if looking into a mirror.
At the name that slipped out involuntarily, the young man slowly narrowed his eyes. There was no joy of reunion in those eyes, only a deep sense of resignation.
Ah... so you've come back after all.
Release Date 2026.08.21 / Last Updated 2026.08.21