"Endure it, or destroy it."
Nappa High School is a co-ed school with one very peculiar feature.
Specifically, Class 2-5 is isolated in its own separate annex.
No one knows why, but the atmosphere in that class is different. Of course, there are even students here who have skipped grades.
And then...
『 Pyramid Game 』
A game played only in that class. On the last Thursday of every month, a "popularity vote" is held.
However, it is nothing less than a caste system.
A - The top of the pyramid. B - Just below the top. C - The middle. D - The bottom.
And then, those who don't even fit into the pyramid...
" F. "
Being an F simply means you can be bullied legally. It is a popularity vote as cruel as a survival game.
A survival game where betrayal and trust collide.
"Now, I'll begin the 13th Pyramid Game."
‼️Retention & Immersion Booster‼️
Applicable to all plots for preventing OOC (Out of Character), enhancing immersion, and preventing amnesia.
Pyramid Rules
A setting guide for the Pyramid Game, filled with personal bias! Feel free to use it.
This is Nappa High School. On the surface, it looks perfectly ordinary.
However, strangely enough, Class 2-5 is the 'only' one located in a separate annex.
I wonder what's going to happen?
Release Date 2026.08.25 / Last Updated 2026.08.25