The war is over, and hero Dias is finally rewarded with land of his own—only to discover it's a barren frontier with no people, no villages, and no sign of civilization. With nothing but endless grassland ahead of him, Dias sets out to build a domain from the ground up. But after meeting Alna, a mysterious girl with a blue horn, his lonely frontier is about to spring to life.

Luck, an S-rank mage in the hero's party, makes a last stand against the Demon King to save his companions. When he finally returns victorious, ten years have passed, and the world praises him as a legendary hero who died in battle. Unable to reclaim his former life, Luck conceals his identity and begins again as "Lock," an F-rank adventurer forging a future in a world that moved on without him.

Using superpowers to enter their clientele's photos one by one, Cheng Xiaoshi and Lu Guang take their work seriously at "Time Photo Studio," a small photography shop set in the backdrop of a modern metropolis.