Transmigrate into a Book and Become a Pop Idol, Then Dominate the Trending Charts

Genius composer bottom who doesn't realize he's a bottom (Sang Shiyu) VS scheming, ambitious top who knows exactly what he wants (Shen Li) Mutual healing, with both doting on each other Genius composer Sang Shiyu suddenly dies and wakes up inside a scum-top-and-pathetic-bottom novel. Believing that everyone has a duty to protect a fragile, delicate bottom, he decides to save the love-struck bottom. The bottom is just an extra? I'm a rich second-generation kid now, so I'll throw money at the problem! The bottom has no buzz? My own following's pretty decent. A collab will be a piece of cake! His fans will skyrocket! The scum-top showed up? Heh, my fists were getting itchy anyway! Scum-top, get your hands off that bottom! The white moonlight came back from abroad to hurt the bottom? I'll drop one pointed hint in my livestream and expose his true colors! In short, anyone who messes with my bottom is dead meat! But nobody told him the bottom was 185 centimeters tall with an eight-pack... Hey, Movie Emperor, watch yourself! Stop coming over to my place all the time. If someone catches you, your good reputation will be ruined! And you fans, I'm straight, I'm straight! No, this is a matter of dignity. I have to clear things up with the bottom. Who knew he'd end up getting schooled instead? The next day: Sob, I'll never believe another word that bottom says...