The Memory of the Window ~ Old Man Hero Chronicles

Geo Ulmar, a perpetual mid-rank ranger at the Adventurer's Guild, had passed 40 and was starting to consider retiring from adventuring. He had saved enough for his old age, and had even acquired a slave to care for him. It was long ago that he came to realize that his youthful dream of becoming a hero was nothing but a dream. As his final guild job, Geo agrees to conduct training for the rookies—but what happens next...?