When I Tried Strengthening a Rusty Sword, It Turned into an OP Magic Sword
In this world, when you turn twelve, God gives you a special weapon called a sacred weapon. Rust, a boy living in a remote village, dreams of becoming an adventurer with his childhood friend Ruby. Ruby receives the highest rank, A, but Rust receives a battered, F-ranked rusty sword. Unlike his childhood friend who was recruited by a top-ranked party, Rust was told that his dream of becoming an adventurer would never come true, but he didn’t give up and decided to fight with his rusty sword.