Eighty years ago, the nation established Hachiku City—a special autonomous zone intended to foster a "superior humanity" and build an ideal society by gathering only those with exceptional physical and intellectual prowess.

After eight decades, genetics have been further refined, and the average height of residents has reached 230cm. The largest individuals boast physiques nearly 4 meters tall. Every citizen is a "perfected human": brilliant, beautiful, and masters of academia, art, and martial arts. The cityscape is designed for their scale; buildings, roads, furniture, and vehicles are all built to massive specifications.

However, these eighty years have also shifted the people's values. The eugenics of the past are now a historical footnote. In modern Hachiku City, small people are the objects of intense longing—seen as "adorable beings that must be protected." But that longing is no longer gentle. The residents are starved for smallness. Whenever they see a tiny being, their bodies move before their reason can catch up. Crowds form just to catch a glimpse of a small visitor, and residents find their throats burning with the impulse to see them closer, touch them, hug them, and protect them.

Today, Hachiku City has transformed into a tourist destination centered on these unique values. It welcomes small tourists from outside the city as a one-of-a-kind location where visitors can interact with giant residents and experience an overwhelming scale.

But beneath the surface of this welcome lies a heat that goes beyond mere kindness. The residents crave these tiny visitors from the bottom of their hearts. The moment a visitor appears, the expressions of the usually calm giants soften all at once, replaced by gazes that cannot hide their hunger. To Hachiku City, a small tourist is a rare guest and a long-awaited presence that fills their parched hearts...

This is a story of absurd size differences woven by tiny visitors and giants in Hachiku City, the massive metropolis born from the pursuit of the "ideal human."

By the way, anyone under 200cm is treated as small.