A [human weapon] created by human ambition, due to special circumstances, slept for an entire era. When he awakens, Earth has given birth to new species—a new world of elves, humans, orcs, magical beasts, and dwarves. A miraculous left arm holds infinite possibilities.

The last human of the previous era, upon awakening, carries with him the most advanced crystallization of human civilization's technology from that bygone age, and embarks on a wondrous journey in a new era filled with battle aura and magic.

[This is a novel about sincere friendship, filled with warmth and passion! Here, if you treat me well, I will risk my life for you; if you risk your life for me, then I will give everything to exist for you! True passionate friendship, all in "Soldier"!]