The Heir's Revenge

As a child, the protagonist, Summer Dalton, was a problem child addicted to games with poor grades. He was used by a villain who entered the Dalton family as a private tutor. The villain exploited the kindness and trust of Summer's parents, meticulously planned a scam, and took over their home, becoming the master of the mansion. Twenty years later, the now grown-up Summer decides to return to the home that belongs to him.