The Armageddon came. A catastrophic event called the Blaze on May 14, 2032 scarred the planet: humans mutated into strange creatures, strange gods drew their worship, Iko demons populated the surface, and the survivors turned on each other in bloody conflict. At the center of the wasteland stands the Nerve Tower — a structure no one has ever entered. The protagonist is nameless, mute, and amnesiac, but driven to enter anyway. His task is to purify Meta-Beings — once-human creatures lost to internal delusions — and descend to the tower's deepest floor to seek redemption for a sin he cannot remember. Interactions with other characters and unlocked cutscenes build the backstory one piece at a time.