[Western fantasy, gender-bender, pure romance + harem (lol)]
What does the world look like after the Demon King has been slain?
As the youngest Sword Saint of the human race, Aivira successfully slew the final Demon King, but the war she had imagined would end did not come to an end.
"Without the Demon King, the world will be destroyed..."
[The 'deity from beyond the stars' gazes at you with a helpless expression]
"The Demon King is dead. There's only one way now!"
[The 'deity from beyond the stars' looks at you excitedly]
"Become the Demon King and restore balance to the world!"
"I'm a Sword Saint, for crying out loud. How could I become the Demon King!!!"
…
Reincarnated into a world a hundred years later, Aivira gazes at her body, a golden-haired little girl's physique resembling that of a succubus, and falls into deep thought.
"So my goal is to become the Demon King? But what is going on now!"
A black-haired little maid she made cry? A useless princess in confinement?
None of this seems right at all!!!
[The 'deity from beyond the stars' is looking forward to your story]
…
Some black-haired maid: "Your Highness, actually... actually, I've liked you for a long time..."
Some kingdom's princess: "Big sister (smiling), I've already convinced Father to date you (hiding a knife)."
Some unknown silver dragon: "Those who don't keep their promises get eaten by dragons, you know (gloomy face)."
…
"I told you, if you save the world, I'll agree to marry you..."
[The 'deity from beyond the stars' is willing to grant your wish]
"A love rivalry, seriously, I don't want this!"