Discrimination Sex -If you choose the wrong partner, you'll be cuckolded-

Yuga and the dark elf Ruvi are the talk of the mercenary guild.
As lovers and partners, the two lead busy yet fulfilling lives, but a job they accepted in the port town of Nist befalls them with misfortune.
A moment of carelessness on Ruvi’s part causes her to blow up some research equipment owned by the client, leaving her with the responsibility of paying 1 million yen in compensation.
While encouraging Ruvi, who is feeling deeply remorseful for his mistake, Yuga warns him, “Don’t do something stupid like selling your body, okay?”
However, as Ruvi gazes at Yuga, a question arises in his mind.
“What exactly does ‘selling your body’ mean?”
When Yuga asks more about this discrepancy, he learns that to dark elves, sex is solely for the purpose of reproduction, and they have no understanding of sex for pleasure or to make money. Up until now, Ruvi had always wondered if having sex with Yuga was pointless if he was going to use contraception.
The difference in values between them, which they had unexpectedly discovered, gave Yuga a headache.
But then, with a look on her face as if she had just come up with a brilliant idea, Ruvi said to Yuga, “How much do you think my body would sell for?”
His beloved lover said she wouldn’t mind having sex if it would help raise compensation.
“That’s absolutely not okay!” Yuga replies hastily, but he imagines Ruvi in the arms of another man and is drawn to a strange sense of immorality.

Two people living in an extraordinary world within an ordinary town.
Takahiro and Yumiko were born and raised in a family of exorcists.
They are childhood friends and partners, but due to family circumstances, they are betrothed.
While aware of each other’s feelings, they maintain a pure relationship until they finish their studies.
The two are tasked with protecting the town from supernatural phenomena.
Following their duty, they track down the traces of a supernatural phenomenon that has recently been causing trouble in town.
Finally, the two corner the demon that is the source of the supernatural phenomena.
However, in the demon’s last desperate struggle, the two are trapped in a place that resembles a school.
It is an alternate dimension from which they cannot escape unless they complete a challenge.
Furthermore, Ren, Takahiro’s younger brother and the school’s chairman, also gets lost in the place…

In a certain country, there was a prince possessing a special sperm known as the "seed of God."
Any woman impregnated by this divine sperm could give birth to a child with overwhelming magical power.
…This special sperm caught the eye of the succubus king, and one day the prince was abducted to the land of the succubi.
If the prince's sperm were to be scattered among the succubi,
many succubi with immense power would be born, and humanity would be dominated by them.
The prince vowed to protect his beloved people, vowing never to ejaculate.
To mock the prince, and to select a succubus worthy of bearing a special child, the succubus king declared the holding of a competition.
The name of the competition was the Wedding Battle Fair.
The nine succubus princesses who ruled the succubus kingdom were chosen as participants.
The prize: the right to become engaged to the prince.
The rules of the battle were a battle-fuck contest where the prince and the demon princess would make each other orgasm.
The demon princess's victory condition was to become pregnant with the prince's child right there in the ring.

This game is set in a fantasy world where you are trapped in a room where you can't escape unless you have sex with an elf, a nun, or a beast girl.
You can also enjoy sex with tentacle monsters and the classic goblin.
The game emphasizes gentlemanly elements over gameplay.

The world has fallen into the hands of the Demon King.
The protagonist appears, and although requested to subjugate the Demon King, they find themselves locked in a bitter struggle.
Upon arriving at a village, they meet a sister and discover that “having sex increases your level.”
With this revelation, the protagonist and companions set out to defeat the Demon King while having sex along the way.