Prisoner of The Ephemeral Kingdom

Fantasy reincarnation! Be the harem king of a bevy of sexy knights.
You were a virgin until death.
Reborn as the son of a wealthy family in a parallel world, you at first seem doomed to repeat history, living the life of a sexless NEET.
Money is no concern to you, but reincarnation should be more fun than this!
Take the wheel of fate and make a hard hentai turn;
you're surrounded by beautiful chivalrous lady knights. Create your harem!
Faces will gape. Hips will quiver. You're royalty now, enjoy it!

After completing his mission, the father, a royal knight, returns home to the village where his only daughter, Marie, is waiting for him.
The next day, he travels to the northern forest with Marie, where he finds an elf woman
about to be attacked by some human men…!
He manages to rescue the elf woman, but her true identity is Siena, the first princess of the neighboring Elven kingdom.
What’s more, Siena’s younger sister has also been kidnapped by the same men.
If things continue as they are, there may be a war between his country and the Elven kingdom.
The father travels all over the kingdom to save Siena’s sister and avert the war…!!

Kingdom of Velvet Chains is a dark fantasy visual novel of lust, power, betrayal, and arcane seduction.
 
You step into the heart of Amarta — a once-glorious kingdom now teetering on the brink of civil war. Its throne belongs to Queen Faemeliel, a young elven monarch forged in grief and secrecy after the death of her father. She rules with both the sword and an ancient, forbidden magic: a curse that lets her possess the bodies of others… and drain life through intimate contact.
 
At her side stands Aegness, her loyal protector and most trusted warrior. In the shadows of the court, Maedithir, the aging royal sorcerer, watches closely — ever wary of the dark forces at play.
 
But danger brews from within. Faemeliel’s estranged sister, Ilyrana, once quiet and overlooked, now burns with long-repressed resentment. Abandoned by her allies and ignored by the crown, she turns to rebellion — and into the arms of Aimer, a sharp-tongued poet who weaves veiled dissent into his verses. Together, they become a growing threat to Faemeliel’s reign.
 
Meanwhile, a mysterious sorceress named Kandhella arrives at the royal court, offering her aid to Faemeliel in her struggle for power.
But her true motives lie hidden beneath a veil of deception and magic.
 
And then… there’s You.
A wanderer of mortal blood, caught in events far beyond your station.
You saved the queen’s life by chance — or perhaps fate — and by ancient elven custom, she now owes you a lifedebt.
That bond cannot be broken. Tradition demands she serve you — fulfill your every desire — for the rest of her life.
But to honor that vow may threaten her rule, her reputation… and the future of Amarta itself.

Princess Elise rules the peaceful Kingdom of Fatalia, home to the protagonist Leon and his lover Yuni.
Fatalia is allied with the theocratic Nation of Holy, led by their friend Saint Maria.
Their old enemy, the Gran Empire, was defeated in the previous war.
Rather than destroy it, Elise installed the peace-loving Distol as emperor.
After years of quiet, however, the Gran Empire suddenly declares war once again, forcing Leon and his allies to take up arms.

The allied nation of Sakilfia and the enemy nation of Elimine.
The long war between the two countries had been progressing with the Sakilfia army having the upper hand, and the battle was finally nearing its end.
Amidst this, the Elimine army launched a surprise attack on the Northern Front Command, where a meeting was being held to reorganize the front lines in anticipation of a ceasefire.
Eight Sakilfia’s next generation of officer candidates, who had been gathered there, were captured by the enemy.
However, Elimine was not a unified front.
While they had not lost their will to fight, some were beginning to explore ceasefire negotiations in order to end the prolonged war.
“If we continue to detain the eight enemy officer candidates during ceasefire negotiations, it could affect the negotiations themselves—”
Following this assessment by the Elimine Minister of Military Affairs, discussions began between the diplomatic and military authorities of both countries.
And finally—
72 hours later, the eight prisoners were handed over to Sakilfia at a designated point on the border.
A provisional extradition agreement was reached.
Only 72 hours remained.
However, the prison where they were held was not so lenient that they could simply wait for release.
The guards cast a forbidden curse on the captured officer candidates—
“The Curse of Sexual Slavery.”
It was a curse that mixed their souls with their semen, so that once they ejaculated of their own free will, they would be unable to resist the person who aroused them.
However, because of its immense power, there was one absolute condition.
Unless the person truly desired to ejaculate from the bottom of their heart, they would never ejaculate.
In other words, it could not be done by force.
The guards tempted, cornered, and aroused their desires, leading the young men’s will toward corruption.
Their goal was singular:
To make these men, the next generation of the Sakilfia army, completely subservient and force them to spill military secrets.
Would they be able to endure until their release in 72 hours?
Will you gather information hidden within the prison and expose the enemy nation’s intentions?
Or will you succumb to temptation and choose your own downfall?
This simulation game takes place in a prison filled with malice, debauchery, temptation, and corruption, where you use seduction to corner the officer candidates.