Who Can Be a Star If You Don't Have Some Side Hustle?

(Single heroine + entertainment + no system + slow heat) Lin Yu accidentally returned to a parallel world in the past, where there were no works from his previous life. With the memories in his mind, the cultures of the two worlds collided. Writing songs? Proficient in all eighteen musical instruments. Write a novel? As long as the fantasy fairy has the skills. You said it's not passionate enough or tear-jerking enough, "Jinju" isn't enough? Isn't "Unknown Flower's Name" okay? Songs, novels, and animations all focus on one thing to break your defenses.