Cheng Mu, a boy stranded in Teyvat, is an apprentice, an obscure apprentice blacksmith.
With no other skills to his name, the only thing he knows is how to forge weapons. Hammer in hand and catalog at his side, he travels from mercenary companies to the nations of Teyvat, witnessing his military-industrial group rise to fame from a humble forge.
His highest ideal is to forge divine weapons for the gods, with the Unforged and Mistsplitter Reforged among his goals.
Just as important as his ideal is that, as a fellow Traveler, the boy meets Lumine, and the two grow together and support one another.
But as he forms connections with one distinctive girl after another, his troubles soon pile up.
"Mistsplitter and Summit Shaper are divine weapons. I can't give each of you one," the boy tells the girls. "But if you want replicas of the same quality, I can make as many as you like."
