In Class 1-A of Tokyo Advanced Nurturing High School, there was a student who became the talk of the school from the very first day. He was effortlessly cool, even doing his cleaning duties, eating lunch, and standing as punishment in the hallway. Every move he made exuded—Cool! Cooler! Coolest! This student, who embodied coolness and elegance to the extreme, was named—Sakamoto. He casually pushed up his glasses: "I am Sakamoto. What brings you here?"

Twelve men and women of varying identities are invited into a new world.

Here, they must not only decide their lifestyles by voting on resolutions, but also constantly participate in life-or-death games to extend their visas.

And the designer of these life-or-death games is actually among them.