"Volume 1, Chapter 1: The Duke's deaf second son died of a winter fever at age six." That was how the original fantasy novel discarded me. In my previous life, I was a Tokyo CAD drafter who suffocated silently in an apartment fire. When I opened my eyes again, I was reincarnated as Sean von Vane, the congenitally deaf extra of a cold northern duchy. I didn't care about the protagonist's silver destiny. I had only one plan, survive the deadly fever, build vibration-sensing boots, draw technical blueprints, and live in quiet peace. ...Or so I thought. My silent hand signals guided the vanguard cavalry out of a blizzard death trap. My seismic boots exposed monsters no one else could hear coming. Now, the brother destined to die crippled salutes me as the "Eyes of the Border," and Duke Vane has set his sights on me. Wait. Wasn't I supposed to be an extra living quietly?