Fire Punch is a dark fantasy manga set in a frozen, post-apocalyptic world where a young man named Agni gains regenerative powers after his sister sets him on fire to prevent him from starving. Unable to die and perpetually burning with "cursed flames," Agni is consumed by a singular desire for revenge against the man who burned his village. The story follows his brutal and often absurd journey, which spirals into a chaotic exploration of trauma, identity, madness, and dehumanization as he clashes with other blessed beings and the twisted society that worships him. Readers enjoy Fire Punch for its unflinching and nihilistic tone, shocking plot twists, raw emotional weight, and how it uses extreme violence and black comedy to examine themes of obsession, purpose, and the cost of survival in a hopeless world.