After Reincarnating as a Tyrant, My Seven Fiancées All Want to Kill Me

After Wei Heng died, he transmigrated into a Western fantasy romance game and became the future villainous tyrant who would destroy six kingdoms and unite the continent of Ossis: Selvien von Sorenstein, the "King of Ashes." The good news: Selvien hadn't inherited the throne yet. He was still the crown prince, and none of the six kingdoms had been destroyed. The bad news: The old emperor was choosing a marriage partner for the crown prince, and all six kingdoms had sent their finest candidates to secure their own safety. Wei Heng: (Raises an eyebrow) That doesn't sound like bad news. System: It is bad news, because all six are here to assassinate you. Wei Heng, who had been confined to a hospital room his entire life due to a congenital illness and was now a humanoid, mobile nuclear weapon with mastery of both magic and martial arts: (Smiles sincerely) That sounds pretty interesting... But the title says I have seven fiances? System: That's right. One is far away, yet right before your eyes. Wei Heng: Got it. A child bride. System: But your rival killed her from the start. Wei Heng: (His smile widens) No matter. I see necromancy on my skill tree. (Later) System: You're supposed to play the main boss of a romance game's main story, not the protagonist of a romance game! Wei Heng: I almost forgot. I haven't won over the protagonist yet. System: Hey! An overpowered, devious top x a variety of strong-willed bottoms Theme: Stay strong and optimistic even when circumstances are harsh