I’m Growing a Tech Tree in the Beast World

What do you do when you suddenly discover you can travel back and forth between two worlds?

Trade, make money, build technology.

Gu Beicheng, a tech genius whose entire family was slaughtered, discovered after dying alongside his enemy that he had arrived in a primitive beastfolk world. With his advanced technology, he became the Beast King. Once his faith points had filled up, he discovered he could connect the two worlds.

What a deal!

A god in the beast world, a tycoon in the modern world.

In short: If you can think of it, I can do it.