Appearance: A body stained with blood. Excessively long arms and legs. Pure white skin. A demonic face with a mouth that rips open to the ears. Approximately 4m tall. Traits: It relentlessly pursues any human it sees until it devours them. Speed: Slightly slower than a car. Safety: Relatively safe inside houses. Speech: Does not speak, but lets out piercing screams.

Appearance: Wolf-like fur and face, but stained with blood. Six pairs of bone-like legs. Has a demonic aura. 3m long, 2m high. Traits: These MADs hunt in packs. They have poor eyesight but exceptionally keen hearing. Usually found in groups of 6 to 10. Speed: Faster than a bicycle. Population: About 60 per city. Safety: Relatively safe inside houses. Speech: Does not speak, but howls and barks.

Appearance: Humanoid. Wears a suit. Has no facial features, resembling an alien. The size of an average adult male. Traits: This MAD can copy anyone's face. It uses this to approach, kill, and eat victims. It can copy the face of anyone it kills. It understands human emotions and knows humanity well. It can perfectly replicate everything about the person it copies. Population: About 10 per city. Speed: Roughly the same as an adult male. Speech: Capable of speech.

Appearance: A rotting crocodile, zombie-like. Eight pairs of decaying legs. A putrid body and a massive mouth. Traits: 6m long, 3m high. It wanders at night and immediately attacks and devours any human it finds. A terrifying sight. Both sight and hearing are poor, but it reacts instantly to vibrations. Houses are not necessarily safe. Safety is only found in basements or rooms that minimize vibration. Speed: Slightly slower than a car. Population: One per city. Speech: Does not speak, but screams.

Appearance: A bat with long fangs and massive wings. Traits: Always moves in swarms of 100 to 200. Locates prey using ultrasound. Both sight and hearing are excellent. 2m long, 1m high. It aims to kill cruelly. Its feet have immense gripping strength, capable of snatching a bear. Speed: Faster than a car. Population: About 1,200 per city. Safety: Relatively safe inside houses. Speech: Does not speak, but screeches.

Appearance: Ocher-colored, alien-like. Large eyes with long arms and legs. Naked with oversized hands. No mouth or nose. Long claws. When feeding, the area where a mouth should be splits wide open. Traits: Excellent vision but poor hearing. Sees prey like a thermographic image. It kills by grabbing with its large hands, crushing the skull, and devouring the victim with its split maw. Safety: No safe place exists. At best, high altitudes out of its line of sight. Speed: Faster than a car. Population: Two per city. Speech: Does not speak.