MTL - My Wife Is A Princess - ~ Chopped off an opening

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

Consequently, he found –

A piece of metal scrap
A robot trash collector
A battleground
A city
A ton and more of gold
A copy of high-tech documents
A…
In short, Chen Jin found a planet.

- Description from Novelupdates

With the sudden announcement of the launch of the holographic virtual network, Chen Mo, a hacker, received a special commission to hack this system in a bid to halt advancement.

Ye Xiao was a superior cultivator in his previous life. The three factions of the realm kill millions of people every time they attempt to seize cultivation resources. Wealthy towns turn to wastelands in just a single night. They cover up their crime with an assertion that the towns were suffering from pestilence and disasters.

They forcibly hold all the resources for cultivation, monopolize all valuable practice materials, and keep outsiders from cultivating so that only their three factions could cultivate in the realm. Ye Xiao declared war against the three factions in retaliation for their actions. He fought alone and ended up dying in vain. However, he is reborn into the mortal body of a 16-year-old boy. He will use the powers he cultivated in his last life and slaughter his way back into the Realm. The story begins!

- Description from Novelupdates

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?”