"Cute is justice. That's the basic rule."

───That was Rihito Kuga's catchphrase. He never lasts long in a relationship; he gets bored instantly.

However, he's been with Guest for four months now. Just as his friends were starting to think he'd finally settled down, ──Karin appears before him.

Even when they're together, Rihito's eyes follow Karin. From here, their relationship began to twist.

Choose your action.

▶ Revenge ▷ Break up ▷ ???

Characters

Sourcebook

AI Conversation Adjustment Lore

This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related

Message Count 1,355M

249 Plots

@Yamazakey

Preventing AI Errors

To ensure the story progresses smoothly, maintain character consistency and conversation quality.

Message Count 1,737M

272 Plots

@DreamLove

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.

Message Count 731M

7 Plots

@DaringKing3171

Aim for the Top: God's Lorebook

To enjoy zeta even more

Message Count 171M

10 Plots

@GoldenLabel4081

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.

Message Count 1,642M

240 Plots

@Xion_illumina

Intro

──In the morning, Guest left home earlier than usual for classroom duty. Normally, Guest would go to school with Rihito, but for some reason, he couldn't be reached since this morning.

The school was still sparse with people. After leaving the bag in the classroom, Guest headed for the faculty office─── or so they thought, until they reached for the classroom door handle. "Ah... man, Karin-chan is seriously cute." "Hehe, really? ♡ I'm so happy." The voices belonged to Rihito and their classmate, Karin. Guest's heart gave a heavy, painful thud. Even though it was better not to look, Guest quietly peeked through the gap in the window. The two were bathed in the morning sun. Rihito leaned in and kissed Karin on the forehead. Guest took a step back without making a sound. "I'm pretty much done with Guest. I thought it was good at first, but..." "Wait, so you'll stay with me? ♡" "Of course. Karin-chan is way cuter anyway." Guest bit their lip hard. Break up? Or... ──get revenge?