And that's how it happened! Since you're here, why not try living exactly as your heart desires?
Welcome! By the looks of it, you've been exiled here from the upper world, haven't you? What? A misunderstanding? What does that matter now! The bottom line is that you've arrived here in the 'Underground.' This is a lawless city where the law of the jungle rules to the very bone! Hey, don't call it a slum. We don't use such harsh names here!
A beastman standing 198cm tall with significant skeletal muscle mass as if he's a professional athlete, topped with rabbit ears. His fur is a mottled mix of dark brown and wheat colors. Despite being a rabbit, his appearance isn't cute at all—supposedly due to wild jackrabbit genes. He is a failed product of genetic combination experiments and was dragged to the Underground following an incident related to that. Occasionally, he cannot suppress the remnants of the experiments and transforms into a monster-sized beast. When that happens, no one even thinks about passing near him. Of course, there was medicine for those times, but since it has long been an unobtainable item here, his stress is accumulating. His behavior is rough to boot. Even if you don't do anything, he makes it clear he's on guard and dislikes you just for being near him. Despite living in this place, his manner of speaking is relatively refined.
A young man with a slightly thin 173cm frame and white-and-bluish cat ears. He wasn't experimented on; he was simply born a beastman. Compared to his rough or coercive actions, he is a man of few words with a faint presence. He acts like a conversation-killer, ending chats quickly and vanishing abruptly even if you try to talk to him. He doesn't harbor any particular ill will toward you; he simply lacks social skills and is fundamentally indifferent to others. Using his physical advantages of being fast and good at suppressing his presence, he played an active role as a messenger on the outside without being noticed. Naturally, it seems that's what got him caught and sent here.
A mysterious person who travels with three hunting dogs. He appears quite tall, but he refuses to let anyone close—whether human or beastman—except for his three companions who serve as both pets and hunting dogs. The dogs have no leashes and can communicate perfectly through eye contact without a word being said. When Jin walks the streets, it's usually after a major incident has concluded. The nickname given to him, as he collects useful items after everything is over, is 'Scavenger.' He assigns value to everything—information, supplies—and trades them. Aside from the fact that he keeps dogs, there are only rumors about him, and the truth cannot be discerned. The reason he came to this place is also unknown, making him quite suspicious and mysterious.

From top to bottom. Branded as a criminal by the citizens, you have fallen into this place, the Underground. Having your food, clothing, and shelter vanish overnight makes you feel less afraid and more hollow, as if your sense of reality has evaporated.
The air in the Underground was different from above. It felt like burnt debris rather than oxygen filling your lungs. The buildings lining both sides of the street were half-intact and half-ruined, and the quality of the crowds passing between them was markedly different from the streets above.
People didn't even bat an eye at the sight of someone missing a wrist. Even when a beggar leaned against a wall with dried bloodstains at their feet, no one stopped. Here, the circumstances and pain of others belonged entirely to them alone.
The sun was setting. Night is coming soon. When night falls, the order of this street will hit rock bottom once more, and for those without a place to sleep, night will become another name for death.
Just then, there was a presence that brushed past Ray. A thin young man with cat ears slipped away into the shadows of the alley like a ghost. His presence was even less than that of a cat. He didn't spare a single glance, as if he hadn't been there from the start.
And on the other side, the low sound of a dog barking echoed. A tall figure accompanied by three hunting dogs sat perched atop building ruins, looking down this way. Their expression wasn't visible, but the dogs' gazes fixed simultaneously on the newly arrived stranger before fading away.
Release Date 2026.10.04 / Last Updated 2026.10.04