Billionaire He Huan wakes up and returns to the 2007 high school classroom, with one hundred million still lying in his bank card. In this year, his mother will pass away due to a car accident, and his younger sister is sliding into the abyss of rebellion. This time, he no longer lives in a daze, rushes into the top twenty in class, makes a fortune quietly in the stock market, buys a house in his sister's name, and pleases his mom. Low-key as a top student, high-key to protect his family, all regrets, this lifetime are completely made up for. The desk mate is the class flower who humiliated him in his past life, and he only glanced at her faintly—this lifetime, he only cares about those three people in the family. One hundred million in the card, the story has just begun.