Bog Standard Isekai - Chapter 11Book 3:

In the early world of immortal cultivation, there was no physical cultivation among immortal cultivators. And a top bodybuilder who came from the earth has opened up a new path here and became the ancestor of physical training.

- Description from novelbuddy

Lin Mu Yu is one of the top players in Conquest the game before Destiny. He decides to delete his account due to a promise with his father.

In an alternate world, a demon disrupts dynasties, harvests souls, and refines a banner of ten thousand souls.Under the heavenly tribulation, his body and soul are destroyed, but the Ten Thousand Souls Banner protects his undying spirit. Unable to possess a body, he's countered instead.A laid-back young man in society, wielding the Ten Thousand Souls Banner, roams the human world.With the Ten Thousand Souls Banner in hand, I refine a Golden Core with good deeds.A slice-of-life story with no ambition for conquest, helping the departed fulfill their wishes, gaining merit to repair the Ten Thousand Souls Banner, and enjoying a laid-back life.

In a parallel world, everyone awakened to weapon talents. They used divine weapons to battle against ferocious creatures.

Hence, the Forgemaster job class was born and was held in high esteem.

Wu Mo transmigrated to this world and became a student of the top academy, Divine Arms Academy.

The end-of-semester practical exam was in three days. Students were required to forge a divine weapon on the spot.

However, he was not prepared at all!

Fortunately, he awakened a system which allowed him to see the blueprints of all mythical weapons.

[Mjolnir]

[Divine Bow of the Winter God]

[Eternal Spear]

[Shield of Zeus]

…

Since he was a blacksmith, he decided to create a hammer for himself first.

On the day of the end-of-semester exam, the whole world was astonished!

An examiner exclaimed, “We asked you to submit your assignment and you are submitting Mjolnir?”