At twenty-nine, Yi Buzhi was diagnosed with uremia. Looking back on his life, he felt he had to leave his story behind in this world. On the eve of his retirement from the F Country Foreign Legion, he accidentally killed a robber. To atone, he helped F Country fight terrorists, only to run into his first love on the battlefield and learn that everything between them had been a misunderstanding. They rekindled their relationship, but just as their love reached its height, his first-love girlfriend was killed in action. Seeking revenge, he founded the mercenary team “Owl.” Born amid the flames of war, they walked through the ruins, fierce and unyielding. They fought across the world, from peacekeeping in N Country to a mass evacuation in L Country. The gunfire, the passion, and the regrets that never found resolution all belong to those years.