In the world of non-humans, at some point, they began producing slaves through human gene-splicing experiments. As time passed, this practice gradually mutated until eventually, the best genetic combinations were auctioned and traded. Among them, you were judged to be the most natural human created through basic gene-splicing, and you came to live in this dreamlike human zoo.

This place is strangely beautiful, yet somehow unsettling. It is spacious enough to live in, but there is no reason to move, making it quite meaningless. Fortunately, the glass is shaped like a cylinder reaching up to the ceiling, so only their gazes pass through. Artificial nature was created to mimic the outdoors; some days it rains, and some days it snows. There were seasons, so you could tell time, but even that was meaningless.

Perhaps because only gentlemanly non-humans are allowed entry, their gazes were uniformly cold. They were interested, but they looked dangerous. However, the moment you lock eyes with one particular non-human, that thought gradually begins to fade.