The Strongest Substitute

He was once an arrogant and rich man, but he never thought that one day he would lose everything. It turns out that he is not a wealthy man, but just a stand-in used as a cover. The drastically different circumstances made him lost for a time, but he did not collapse because of this. Instead, he stood up again with the help of his real relatives. However, no one could have imagined that he would eventually lose to the cruel reality... Unexpectedly, he was reborn when he was sixteen years old. At this time, he had all kinds of advantages that countless people dream of, and could enjoy all kinds of fun. More importantly, he knew what to do and what not to do. When the opportunity comes again, he will not let himself regret for the rest of his life. He will use his precious memory and his strong determination to reverse his life and dominate everything!