Summary
In this world, when one turns 12, they receive a special weapon called "Sacred treasure" from the gods. Living in a remote village, a boy named Rust dreams of becoming an adventurer with his childhood friend Ruby. During the "Blessing Ceremony," where they receive their "Sacred treasure," Ruby is bestowed with the highest-ranking A-class artifact, while Rust ends up with a worn-out F-class sword named Rusty Sword.
Unlike his influential childhood friend who is recruited by a powerful party, Rust is told that his dream of becoming an adventurer will not come true. However, he decides not to give up and resolves to fight with the Rusty Sword. Gradually defeating weak monsters, he diligently enhances the Rusty Sword.
After three years, the Rusty Sword finally reaches weapon level 10. At that moment, a skill awakens within the Rusty Sword, leading it to undergo an incredible 'evolution' into a formidable magic sword.
This is the tale of a boy who was considered the weakest, rising to become a formidable adventurer.
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