Rebirth: Go Back to the Past and Start from Scratch

In her previous life, Fang Yuqi was a "successful lecturer" who suffered a big setback in the world of fame and fortune. He started out as a math Olympiad trainer and earned his first pot of gold by opening a "guaranteed course". However, he was defrauded of all his savings by his ex-girlfriend Lily's "pig-killing plan", and he was deeply mired in debt due to a gambler's mentality of taking out a loan to buy a house. He moved to Huaqiangbei, Hong Kong purchasing agents, and cross-border e-commerce, but ended up with a lot of debt. In the end, he ended up working as a low-level salesperson in "Ji Tong Education" who couldn't make orders, was insulted by his supervisor, and ridiculed by his colleagues. The highlight of his life was when Xiao Qiao, the King of Glory, took his colleagues away... And traveled through time. When he opened his eyes, he was transported back to 2009, when he was still a thin and introverted fourth-grade student at Aishui Primary School in Huzhou - a "sissy sister" in the eyes of his classmates, a "learning machine" under the high-pressure control of his parents, and a "mathematics freak" in the eyes of his teachers. Starting hell mode? The reborn "Principal Fang" smiled. In this life, time difference is nuclear weapons!