On the day 35-year-old programmer Li Wei was diagnosed with anxiety, he received two birthday presents: a handmade birthday card from a child at the orphanage, and an inheritance worth tens of millions from the father he'd never met, with strict conditions attached: travel around China for three years, spending no more than 80,000 yuan a month. This "orphan," abducted as a child, broke free of the 996 grind and set off alone in a car on a carefully budgeted escape. From blizzards along the Sichuan-Tibet Highway to a Dunhuang mural restoration site, he measured China with his Excel spreadsheets. This isn't a rich man's travelogue with cheat-like advantages, but an anxiety sufferer's journey toward redemption, calculated with an inheritance calculator...