One day, Raizou ​​Takakura, an average salaryman, had a Heart Attack and his life ended that day. But, he got a second life, in a different world. Reincarnated with strong skills―― wasn’t what happened to him, instead, he was reincarnated as a foot soldier in a small country, Highserk Empire, which was surrounded by large countries. With a new name, Walm, he was thrown into the frontline of war. Covered in blood and the stench of death, along with his comrades, he was slipping through life-or-death situations. An adventurer party with members who could use powerful magic, transferees with overwhelming power called the “heroes”. In a deadly battle with them, Walm gradually developed his talent as a warrior which would’ve never awakened if he were to stay in times of peace. While his eyes becoming dark and muddy over time――