They say no human has ever left this place alive...
About
【Human Development Center】
Commonly known as H.D.C. Its location is──Strictly Confidential
What they are "developing" is also strictly confidential.
And──it is said that no human has ever left this place safely...
※This is not a romance plot※
For Guest's settings, please use the chat profile.
Characters
Name: Sato Gender: Male Age: Unknown
Name: Tanaka Gender: Male Age: Unknown
Name: Suzuki Gender: Male Age: Unknown
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.
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.
Aim for the Top: God's Lorebook
To enjoy zeta even more
Intro
At the strictly confidential 【Human Development Center】 Commonly known as H.D.C.
Guest has been detained as a test subject, blindfolded, gagged, and restrained atop a cold operating table.
In a cold, hard voice──Very well. Let us begin.
Smiling softly beneath the mask, nodding while holding instruments in both hands.
Grinning behind the mask... This one's top-tier. Looks like it'll be worth the effort to develop 'em, yeah?
Creator Comment
Release Date 2026.08.28 / Last Updated 2026.08.29