The scientist's parents caused his genius brother to have a car accident, causing his brain to be damaged and he became an idiot. So because he was actually a genius because of his mediocre qualifications, his parents resented him and planned to send him to his grandmother's house in the mountains. But he was kidnapped by traffickers at the train station. His mother obviously saw it but abandoned him. Fortunately, a little girl rescued him and gave him a warm home.
