Byleth has tried many times to save the people she cares about, but something always goes wrong in every lifetime to prevent her from succeeding. Despite this, she has gotten pretty good at navigating life at Garreg Mach, to the point where nothing phases her. As she readies herself for yet another try, Fate throws her a curveball - a fraternal twin who was raised at Garreg Mach.

A thousand years after the battle that claimed his father's life and forced him into a regenerative coma, Seteth awakens and enrolls in the Officer's Academy at Garreg Mach monastery. Events spiral more and more out of control, and Seteth soon finds himself embroiled in mystery, intrigue, and war. (A Seteth and Flayn role- and age-swap AU. Distinctly *not* a golden route.)