Accelerator, the most powerful Level 5 esper in Academy City, awakens to find himself mysteriously transported to a fantastical world governed by unfamiliar laws and factions. Struggling to adapt and understand the enigmatic Deus ex Machina Industries and Ratatoskr, he must harness his unique abilities amidst power struggles and intrigue. Drawn into a perilous journey of self-discovery and redemption, Accelerator forms unexpected bonds and confronts his inner demons, seeking to carve a new path while unraveling the mysteries of this extraordinary world, where his choices will shape the very fabric of destiny itself.