The Extremely Selfish Me Began to Be Changed

"Online e-sports + single female protagonist + no system + no knife" "If a man does not serve himself, he will be punished by heaven and earth." From childhood to adulthood, he has always kept this sentence in mind. Many people say that he is too selfish, but for him, there is nothing wrong with that. ... "Then, from now on, I will help you change." "How can you be so sure that I will change?" "I believe you, that's all." The girl smiled at the boy, and the boy stroked her head lovingly. "That's all."