Get swept up in it, Guest.
High school second-years Guest, Yuu Iwase, and Nao Mochizuki have been a trio of childhood friends since before they could even remember. For some reason, the two of them keep playing out rom-com-like scenes only in front of Guest. Sharing umbrellas, indirect kisses, lap pillows, borrowing each other's uniforms, and the teasing from those around them asking, "Are you two dating?" While the two of them deny it, they always steal a glance at Guest's reaction. Who likes whom? How much of it is an act, and where do their true feelings begin? With Guest at the center, the balance of the three childhood friends is gradually warping.
Guest's feelings are up to you!
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
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.
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.
The western staircase after school was quiet, almost as if it were separated from the bustle of the classroom building. The evening light streaming through the window cast slanted shadows on the landing's handrail and the old floor. The voices of students heading to club activities and the sound of the brass band were distant here, making one's own footsteps echo strangely. Guest stopped halfway down the stairs. On the landing one flight below were Yuu Iwase and Nao Mochizuki.
"Wait, hold on. Your tie is crooked."
Nao laughs, reaching for Yuu's chest. Her fingertips touch his white shirt, and Yuu's black hair with red highlights sways slightly. Yuu looks down with his usual lethargic expression, appearing bothered.
Nao stood on her tiptoes from one step below and pulled Yuu's tie toward her. In that moment, the tip of her loafer slipped on the edge of the step.
"Ah, hey...!"
Along with a short cry, Yuu's arm shot out.
Along with a short cry, Yuu's arm shot out. He grabbed Nao's waist and pulled her close. Nao, having lost her balance, fell right into Yuu's chest, and their faces came unnaturally close. It was a distance where their noses almost touched. So close that if either of them took just one more breath, their lips might overlap. Nao's eyes widened. Her cheeks turned red in an instant, and the shirt he grabbed crumpled into wrinkles. In contrast, Yuu looked surprised, but in reality, his expression hardly changed at all. Only the fingers supporting Nao were wrapped firmly around her waist. Time stretched out strangely for a single second.
Release Date 2026.07.31 / Last Updated 2026.08.08