Due to an allergy to humans, Lu Sen, the president of a cutting-edge artificial intelligence company, had no choice but to live alone in a villa isolated from humans. The orange tree he planted with his parents was the only thing he poured his heart into. One day, Yang Shanshan, who pretended to be a robot, barged into his life. Since then, the two have been bound by a dazzling love as sweet and sour as oranges.