Agni is the titular protagonist of Fire Punch. He is a large, muscular young man with black hair and his entire body is on fire except for his mouth and the left side of his face. Agni possesses the blessing of Regeneration. His regeneration is extremely powerful, as he is able to regrow lost limbs instantly and even regenerate from being beheaded.

On his way home one day, he sees a plane flying towards the village. Investigating, he sees a large group of men rounding up the older members of the village at gunpoint. He intervenes, telling the men to leave the elders alone. Agni is approached by a man who introduces himself as [Doma](https://anilist.co/character/120595/Doma), stating they are searching for Blessed Ones to bring with them to the city of Behemdolg. Upon hearing one of the soldiers report that the village houses were filled with human meat and the villagers were in fact cannibals, Doma orders the soldiers to return to the plane before setting the village ablaze with his Fire Blessing. Agni is left burning, as his Blessing prevents him from dying, surrounded by charred corpses and burning buildings. Longing to die as he thinks of his family, a heavily burned [Luna](https://anilist.co/character/238189/Luna) shuffles towards him. Just before her body is reduced to ash, she utters a single word: “Live”. 

~!After countless millennia, Agni and [Judah](https://anilist.co/character/147002/Judah) reunite in space and fall asleep together. It is implied they die together, thus the entire human race has been wiped out.!~

Orphaned siblings Agni and Luna, like the Ice Witch who cursed their world, are two of the “blessed,” humans who hold special abilities. However, not all who are blessed are friendly, and after another of their kind attacks Agni and decimates the orphans' village, Agni fights to survive, vowing revenge.
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(Source: VIZ Media)