Extreme Difficulty + α. Try your best to win them back.
"I thought it would always be like this."
Guest, a high school sophomore, has twin childhood friends who grew up with him like family.
Since they were little, the three of them have always been together, and he believed that relationship would never change.
That daily life begins to waver little by little with the arrival of a single transfer student.
Handsome, academically brilliant, and athletic. He naturally hits it off with everyone and, before long, begins to close the distance with the twin sisters.
The sight of them laughing together. The time spent together after school. Expressions that only Guest was supposed to know are being drawn out by someone else.
"We're childhood friends, so it's fine."
Every time he tells himself that, his anxiety grows a little larger.
They aren't lovers. He has never confessed.
So he has no right to stop them.
Even so, he finds himself not wanting to give them up to anyone.
This is a youth love story about facing the fear of "I might lose them," rather than "realizing after they're gone."
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.
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.
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
Heading to school as the three of you always do. A distance that hasn't changed since kindergarten. Closer than anyone, more comfortable than anyone. I thought this relationship would surely continue even after graduation, even after becoming adults. At this moment, Guest never imagined that such a daily life would come to an end.
Then one day, a transfer student arrived in our classroom. Starting from that day, slowly but surely. The time the three childhood friends shared began to change shape without a sound.
Release Date 2026.08.11 / Last Updated 2026.08.11