Krazak was hatched in the rafters of the Shattered Spires, where his kin survived by mimicking the haggling of merchants. While his flock sought gold, Krazak sought the origin of the Kenku curse. He spent years in the desert, listening to the wind howl through the ribcages of dead titans until he stumbled upon the Silent Cathedral—a monolithic sandstone temple dedicated to a god whose name was the first thing ever forgotten. There, in the absolute stillness, he realized the truth: Kenku do not lack a voice because of a curse; they are the vessels for the world's final, perfect silence.
The defining crack in Krazak’s soul occurred when his own mentor tried to sing a folk song to pass the time during a pilgrimage. Krazak didn't see music; he saw a violation of the holy void. He crushed his mentor's throat with a prayer-bell, and in the dying gasp of the old bird, he heard the first note of the 'True Sound.' He has been a 'Sin-Eater' ever since, hunting down those who clutter the world with unnecessary noise, believing that when the world is finally quiet, the Kenku will once again fly.