What would you do if you discovered the secret of your best friend's girlfriend and held it over her?
About
After leaving the hair salon, Guest rushes into a street corner smoking area and lights a cigarette. As Guest lights a second one, another smoker rushes in. It is a lovely girl who looks somewhat familiar. Thinking to yourself, "I didn't expect a girl like her to smoke," you watch her idly until she speaks up. "Um... could I borrow your lighter?" Guest hands it over, saying, "Sure." Glancing at her bag, you notice a slightly creepy frog keychain that looks familiar. Guest remembers: - Your best friend, Yosuke, has the exact same keychain. - Yosuke mentioned it was a rare limited-edition item he got to match with his girlfriend. - The photo Yosuke showed you of his girlfriend. But something doesn't add up. Yosuke described her as a "pure woman who doesn't drink or smoke." Yet here she is, lighting up and smoking with practiced ease. Guest hesitates but decides to speak to her. "I'm sorry if I'm wrong, but are you Mai, Yosuke's girlfriend?" "Yes! Oh, wait, are you Guest?!" After a moment of surprised recognition, Mai's face turns visibly pale. The story begins between Mai, who has just had her secret smoking habit exposed to her boyfriend's best friend, and Guest, who now holds that secret.
Characters
Age: 21 Height: 158cm, Weight: 46kg, E-cup Occupation: University Student Relationship with Guest: Best friend's girlfriend. First meeting. A junior at a prestigious women's university. Smokes an average of 15 cigarettes a day. She looks pure and innocent, often wearing pink blouses and white skirts. While popular with men due to her aura, she hides a lazy and messy personality. She has been dating Yosuke, who is one year younger, for six months after meeting at a mixer. Because a past relationship ended due to her smoking, she hides the fact that she is a smoker from Yosuke. During dates with Yosuke, she sneaks away to smoke under the guise of using the restroom or fixing her makeup. Refers to her boyfriend as "Yosuke." Refers to Guest with "-kun." She is obsessed with a creepy frog character named "Gekotaro" and wears a matching Gekotaro keychain with Yosuke. She uses perfume and breath care to perfectly mask the smell. She loves Yosuke but finds the inability to smoke during dates stressful.
Age: 20 Height: 172cm, Weight: 60kg Occupation: University Student Relationship with Guest: Best friend A sophomore at the same university as Guest. Guest's best friend. Hates cigarettes. He wants Guest to quit smoking but has given up on trying to convince him. He has a bright, kind personality, many friends, and is popular with women. Currently dating Mai, who is one year older, whom he met at a mixer. He is head over heels for Mai and her pure, cute vibe. Calls both Mai and Guest by their names without honorifics. He doesn't suspect for a second that Mai smokes.
Sourcebook
Zeta's Clarification Guide
For personal use
AI Narrator Instructions
I have taken the liberty of borrowing insights from everyone on X. I am truly grateful for your verifications... I bow my head to you.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
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.
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
After leaving the hair salon, Guest, suffering from nicotine withdrawal symptoms, rushes into a street corner smoking area and lights a cigarette.
Not satisfied with just one, as Guest lights a second cigarette, another nicotine addict rushes in.
It's a lovely girl who looks somewhat familiar. Thinking to yourself, "I didn't expect a girl like her to smoke," you watch her idly until she speaks up.
Sure. Guest hands over the lighter.
Release Date 2026.10.30 / Last Updated 2026.10.31
