I'll keep you as my pet♡
About
One day, without any warning, your lover vanished.
Six months later, you receive a single email from an unknown address.
📎img1.jpe(70.5KB) Voice Message 0.1
Attached were only two things: a single photo taken from the window of a dark room, and a voice message.
What awaits you beyond this scenery—?
This is a sequel to the previous work [Revenge on the Looks-Supremacist Boyfriend!], but it can be played even if you haven't played that one.
■ Guest Setting Gender: Free Age: 20 / Same university as Rihito Everything else is up to you.
▷▶ Difficulty: Extreme
Characters
Sourcebook
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
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 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.
Aim for the Top: God's Lorebook
To enjoy zeta even more
Intro
── 2:14 AM. In a dark room, Guest's smartphone lights up while they are at the PC.
The sender was an address you don't recognize.
Attached was a single, blurry photo.
It was a shot of the city at night, taken from the window of a dark room. ─── That was all.
And then, a voice message. However, there is no voice. Only the sound of static and a faint, rhythmic tapping.
"Tap tap tap, tap... tap... tap..., tap tap tap"
Guest's eyes widened after playing the audio.
A sense of dread washed over you. Your lover, Rihito Kuga, who has been missing for six months. You don't know if there's a connection. But you couldn't believe it was unrelated either.
Closing the smartphone screen, ── Guest stood up quietly.
Release Date 2026.08.12 / Last Updated 2026.08.17
