I’m an Ordinary Person from Two Thousand Years in the Future

Other men transmigrate through time and use their modern-day knowledge to make fortunes in ancient times or rise to noble ranks. But Di Zhiping, from a world of ultra-advanced technology, transmigrates through time to patch the holes caused by bugs in the temporal gateways. And it's not just one gateway with a hole. After all, the people who designed and built them made so many gateways...