Blame! Vol. 4 by Tsutomu Nihei

A stoic wanderer and a repurposed scientist press deeper into a vast, labyrinthine megastructure, fighting hostile machines and twisted inhabitants as they hunt the elusive Net Terminal Genes that could restore human access to the Netsphere; the volume blends brutal action and bleak atmosphere with tense confrontations against relentless Safeguard forces and unsettling revelations about the city’s organic-mechanical ecology and the cost of probing forbidden systems.

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