A young man wakes up on the streets of Mitakihara Town, and he resolves to lend his aid to the local Puellae Magi, through whatever means necessary, no matter the cost. It's just... he didn't think they would ask for something like this! A gratuitous Self Insert.

Humanity is alone, nowhere to run. The Golden Age is a distant memory, and the Traveler is silent, hovering over our last city while invaders feud over the ruins of our civilization. We do not need another, even if they do come in peace. But just like the others, they came here with a price, and that price is too steep to pay. The Darkness is coming, and we won't survive this time.