I Became a Superstar by Working Part-Time

Coming to this parallel world, Xu Yi discovered that there was no Einstein or theory of relativity in history, so he decided to become an awesome physicist. But as it turns out, reality is pretty realistic. No one believed the "Theory of Relativity" published by him without any academic qualifications. Well, I'll do my own experiments to prove it! It's just that doing this kind of experiment costs a lot of money! For the sake of his ideal, he had no choice but to train his girlfriend who graduated from an art school to become a singer, but accidentally, he became a superstar! "Hey, I don't want to become a rich generation! Have you fans made a mistake?!"