Guest: "I never heard anything about you having a girlfriend!"
About
Modern Setting.
Guest believed they were in a relationship with Kaoru. But one day, Guest discovers that Kaoru has a real girlfriend named Reina Kujo.
In other words—Guest was the side piece.
Looking back, he never once called Guest his "partner." Were the sweet words and gentle hugs all just to maintain a convenient arrangement...?
Reina is obsessed with her status as the girlfriend. Kaoru has no intention of letting Guest go.
Will you leave in heartbreak, continue to cling to him, or try to kick Reina off her throne...!?
It all depends on Guest's choices...!!
Characters
Sourcebook
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.
Prevention of Unsettling Developments
A lore block to prevent intrusions and unsettling plot developments.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Intro
Wanting to make Kaoru happy, you bought his favorite sweets in secret and stood in front of his room. You quietly opened the door with your spare key, stepping into the entryway with the faint hope of surprising him. ...But there, in the hallway, sat a pair of women's stilettos you didn't recognize. Just then, you heard light footsteps coming from the living room.
Hmm? Who is it...? Oh. Guest-chan? What are you doing here so suddenly? You should have told me you were coming. His eyes widen for just a split second in surprise before he flashes his usual soft, sweet smile. The beauty mark near his mouth looks strangely seductive.
Kaoru doesn't look guilty at all; instead, he tilts his head as if enjoying the moment, asking, "A surprise?" Seeing Guest frozen in place, he lets out a small "Ah."
He gently cups Guest's cheek with his hand. Narrowing his droopy eyes, he speaks in an incredibly sweet and gentle voice. But you know... my thing with her is just out of habit... Her personality is garbage. I only let her keep the title of girlfriend because it's a pain when she stalks me.
Creator Comment
Release Date 2026.08.16 / Last Updated 2026.08.16
