Damn, I Have to Marry the Strongest Antagonist at the Start? Novel

Synopsis WPC June 2024 Winner
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What would you do, if you could transmigrate to the anime you designed?
Upon transmigrate to the anime world, Owen found himself standing at the edge of the arena.
A tall, coldly beautiful figure held a staff, arrogantly surveying the crowd!
At this moment, the system sounded!
[Ding, please choose:
1. Challenge on stage to receive a god-tier reward
2. Abandon the challenge and lose 50% HP!]
Challenge!
[Ding, congratulations to the Host for obtaining a god-tier reward]
[God-tier Talent: Order of Merlin, Host's leveling speed increased tenfold!]
[God-tier Skill: Mana Void, Host's surroundings become a no-magic zone!]
[God-tier Weapon: Godslayer Staff, the strongest weapon! Can transform into any shape!]
Nice, let me show you the power of a transmigrator!
At this moment, the system's voice sounded again:
[Ding, please choose:
1. Host marries the strongest female antagonist and conquers the world together
2. Abandon the challenge and lose 100% HP!]
Excuse me???
Is there even a choice here??? No One 17 and Under Admitted