【Datang+MC+Li Chengqian】

When Li Shimin was fighting at Xuanwu Gate, I took out the MC Crossing Gate.

Now that I have MC, I will change my destiny. The next emperor of the Tang Dynasty can only be me - Li Chengqian!

............

Faced with drought, I quietly took out a bucket of water, and from then on people said goodbye to drought.

The common people were slow in reclaiming the land, so I just took out my iron hoe, and from now on, reclaiming the land and cultivating the land only requires a click!

Li Chengqian looked at the people of the world: There will be bread, milk, and meat!

[Mecha + Black Technology + Cool Fiction + Eagle Sauce + Conquering the Universe]

(There is no female lead, but there are some female roles)

Currently, we have completed mecha technology + aerospace fighter technology + space battleship technology + star destroyer technology, and will later develop warp engines, wormhole technology, etc.

Zhang Yuanhang, who had just entered university, unexpectedly obtained a civilization technology system.

This made Zhang Yuanhang, who aspired to become the world's first scientist, ecstatic.

So Zhang Yuanhang, who had just entered university, started his first step, making mecha!!!

While everyone was still worrying about their graduation projects, Zhang Yuanhang spent four years alone to build the world's first mecha!!!