A mage? A spell engineer!

The gods are silent, yet their church bells ring throughout the world;
Miracles shone brightly as thirteen towers stood tall across the continent.
The dwarves' furnaces roared, forging the finest weapons in the world;
The elves' arrows pierce through the forest, protecting their shattered homeland;
Humans, the believers favored by the gods and the race blessed by magic, fought and vied for supremacy on the vastest land.
The seemingly endless epic suddenly accelerated.
Perhaps it's because an engineering student has entered this world.
Having experienced the beauty and legend of this land,
Having witnessed the suffering and poverty that permeate the world,
Luo Xia recalled his first university class before his transmigration and muttered to himself:
"Even those with a major in 'sinkhole' can create a better life."
Magic will definitely work too!