Rebirth in High School and Become an All-Round Academic Champion

His parents "accidentally died" and his sister was "seriously ill." Lu Chen, an all-powerful scientist who was reborn into the body of a high school boy, gradually solved the mysteries surrounding him. From just saving his sister to finding out the truth about his parents' accident, there were layers of fog. Where would the key to the puzzle lead him? The first chapter of the novella has been written before. I hope you will pay more attention to it. Thank you! !