Sanzensekai: The Ronin's Exile [Urban Progression Fantasy - Reverse Isekai / Real World] [Book 1 Completely Written]

Kurisu Nodaichi survived the slaughter of his clan only to endure years of torture as a living weapon before finally being pulled from the dark and sent to modern Earth. Taken in by the Millers, he navigates a new reality that feels like it was built from damp shoji paper, ripping through doors and popping drinking glasses in his grip. While considered an adult on his own world, Earth’s legal system classifies him as a child, forcing him to trade an Edo-era upbringing for modern red tape and the social pitfalls of high school. Saving a girl at school from a goblin after rifts tear open and dump monsters into our world ends up putting him on the Department of Homeland Security radar, but what else was he supposed to do? Larger creatures begin carving paths through the city just as the Miller brothers manifest powers of their own, the resulting mayhem landing the boys directly in DHS custody. Trapped between federal agents and an active invasion, Kurisu faces the collapse of his new life. Having already lived through the destruction of his clan, he refuses to watch another family burn. He readies his steel; after all, something has to be tearing these rifts open. What to Expect:-Book one complete ~125k words, book two 50% complete.-Graphic Violence and Gore-Reverse Isekai / Portal Invasion-Elemental Magic System - Think Avatar the Last Airbender-Massive Power Ceilings (eventually)-Reverse-Engineerable Feats Based on Real Physics (For Now)-Authentic Koryu Martial Arts -Slow-burn Moments-Culture Shock and Language Barrier-Psychological Trauma and Themes-No Harem / No System Menus Scheduled Release Days: Daily through June, then Sunday, Tuesday, and Friday until July 15, then finally Tuesday and Friday thereafter. Legal: Copyright © 2026 S. C. Contryman. All rights reserved. Sanzensekai™, its characters, names, and all related indicia are trademarks of S. C. Contryman. This work is currently only legally available on Royal Road and Patreon.