Honkai: Star Rail: A Hundred Billion in Debt, So I Choose to Blow Up the Company

[There's some good stuff in here]

Lu Xing accidentally transmigrates into Honkai: Star Rail and becomes Qingque's child bridegroom. Unwilling to get married so soon, he runs off to wander the universe, only to find himself owing the Interastral Peace Corporation ten billion because of a contract he signed thirty days earlier.

Daily compound interest, calculated by the second.

He teams up with Huohuo to blow up the company's headquarters, then flees with a five-billion bounty on his head, becoming the number-one fugitive in the universe.

On the run, he discovers he has a fatal constitution: wherever he goes, characters from the story follow him.

Sparkle clings to his arm and refuses to let go. Bronya corners him in an alley late at night and confesses her feelings. Stelle pushes him right onto the bed. With her face red, Huohuo says, "Brother Lu Xing, you can keep going."

But his fiancee Qingque is still waiting for him at Xianzhou Luofu.

"I never meant to build a harem."

"They all say I'm their wing."

"I just want to live long enough to pay off my debt!"