After Becoming a Scumbag, I Survive by Being Ridiculous

Blurb:

Jiang Pan transmigrated into a book.

He became a domineering CEO.

The System told him: You're a scum gong, an absolute scumbag. You not only force your love on the protagonist, Gu Jingyu, but also break his legs and keep him by your side, doing all sorts of things you can imagine every day.

Later, Gu Jingyu turned dark, drove the scum gong into bankruptcy, and left him homeless, where a gang of thugs stabbed him to death.

That wasn't even the worst part. The worst part was:

Jiang Pan had to follow the original plot while changing the scum gong's fate without breaking character.

When Jiang Pan first transmigrated, the scum gong had just caught the runaway Gu Jingyu and was about to break his legs.

Jiang Pan had a flash of inspiration. He grabbed an inflatable spiked club and gave Gu Jingyu a sound thrashing.

Then Jiang Pan put on a conflicted expression, at once obsessive and cruel, yet heartbroken and pained, and spoke gently: "Why can't you just behave?"

Gu Jingyu: ...

Slowly typed a question mark.

Next, Jiang Pan rummaged around in the pocket of his custom-tailored suit, and rummaged some more, until he pulled out a marker. He rolled up Gu Jingyu's trouser leg and wrote five big characters on it: COMMINUTED FRACTURE.

Gu Jingyu put on a cold, aloof expression.

What kind of new game is this?

The story's main pairing is a bottom, while the original bottom becomes the top.

Theme: Be a quick thinker