Naoki Oikawa, a man whose only joy in life was masturbation, was summoned to another world one day
and found himself living a harem life with beautiful female adventurers as a "Hero."
The party decided to make preparations for their journey before heading to their next destination.
Naoki was given some free time but felt lost and bewildered in this unfamiliar land.
That was when Tiane approached him.
"If you have the time, would you mind keeping me company while I shop?"
Accompanying Tiane on her shopping trip leads to a steamy encounter in a back alley;
he is suddenly pounced on by Ryuze; and he engages in sweaty sex with Philia during a training session.
And, naturally, bath time turns into a mixed-gender affair.
Three women, making no secret of their lust, press themselves against Naoki.
An otherworldly harem life with beauties in heat!
In a back alley!? While drenched in sweat!? Using lotion in a mixed bath!?
A non-stop, 24-hour sex-fest with different beauties at every turn♡
If this isn't a "harem," then what is?