A lonely man abandoned by society is reincarnated into another world. Given the name Yuri, he is initially bewildered by the familial love he was never shown in his previous life, but he gradually begins to find hope in his new existence. However, when an invasion by a hostile race brings the flames of war to his doorstep, Yuri is forced to face a brutal battle that threatens the lives of his family. Determined to protect those he loves, he throws himself into an endless war.

This is the beginning of the legendary journey of a man who would one day make his name known throughout the world.