Tetsuya had accidentally moved to teyvat when he wanted to buy food at a convenience store, he got a system called "Infinite infrastructure, science technology and alchemy".
Tetsuya made a contract with the wind archon venti to develop mondstadt and build a new city near the mondstadt area. Tetsuya quietly decided to start using Tivat's version of technology.
As long as I don't touch the abyss, then the law of heaven has nothing to do with me. I can always develop people's livelihood technology, right?
