My Nemesis Can't Become My Wife! [Quick Transmigration]

Three worlds of punishment. Collect heartbreak points to ensure the recipient gets punished.

System: Host, your nemesis can't become your wife.

Top: (dismissive) How could he possibly be my wife?

System: ?

Top: (righteous and indignant) He's just my bedmate/trophy/toy, that's all.

System: ...

ABO interstellar setting

(AO, rivals, the bottom is forcibly matched, Federation setting)

The top and bottom were bitter rivals at school, always running into each other. Everyone knew they couldn't stand each other. They were supposed to enlist together. The top joined the legion his family belonged to, but later went missing. After losing control of his mental powers, he chose to return to his original identity.

The top gets a System and learns that this world is a book, and the bottom is the protagonist of an angst novel who will have a miserable future. The top doesn't believe the bottom has become an Omega, or that his future will be so miserable.

"If he's going to get fucked by someone anyway, why shouldn't it be me? I'm way better at bullying him than those scumbags!" the top sneers.

Post-apocalyptic sentinel-guide setting

(Sentinels hold the highest status, and most guides are confined to the White Tower)

Modern showbiz

Family heir x award-winning actor

Urban catastrophe

Humanity's strongest x contamination monster boss

Theme: Companionship is the longest-lasting declaration of love