A soldier who fought till the end for one world is given a choice. Go to his rest knowing that the threat was over, or accept a new life in a new world where he might need to use skills born in decades of war.

For this soldier there was little choice, he had sworn an oath and even in death his honor wouldn't allow him to abandon his duty.

[participant in the Royal Road Writathon challenge]

[This is an original story, not a fanfic just because the MC is originally named for a comic book character]