In the concrete pits of Neo-Seoul, pain is the only currency that matters. Kang Jun was born with a rare condition that leaves him unable to feel physical pain, making him the ultimate 'human punching bag' for the city's deadliest betting rings. But when the mob tries to rig his final match, the man who feels nothing decides to make everyone else feel everything.

Min-ah thought the distorted shape in her peripheral vision was just a symptom of exhaustion. But when the 'glitch' starts moving closer every time she blinks, she realizes it’s not her eyes—it’s something hungry waiting for her to turn her head.

In the concrete pits of Neo-Seoul, pain is the only currency that matters. Kang Jun was born with a rare condition that leaves him unable to feel physical pain, making him the ultimate 'human punching bag' for the city's deadliest betting rings. But when the mob tries to rig his final match, the man who feels nothing decides to make everyone else feel everything.

Min-ah thought the distorted shape in her peripheral vision was just a symptom of exhaustion. But when the 'glitch' starts moving closer every time she blinks, she realizes it’s not her eyes—it’s something hungry waiting for her to turn her head.