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Sex Underworld e Youkoso!


TitleSex Underworld e Youkoso!
Original titleセックスアンダーワールドへようこそ!
LengthMedium (10 - 30 hours)
DeveloperMoonstone Cherry
Sex Open World e Youkoso!


The hero from another world successfully made children with his seven wives.
It seemed that this was the end of his fateful mission.

The world of Rolentide had been quiet for a long time.
But there was more to the legend being told.

──When the Heroes of Light are born, the Children of Darkness are also born──

The man who would father those figures, is the hero himself.

"Again!?" the hero thinks to himself, eager to have more sex.
In fact, if he becomes the father of the heroes of light and the Children of Darkness, it is possible for him become something that surpasses even the king of the world.

So therefore...

Guided by a legend, from places not seen before, beautiful girls from the underworld gather in search of the hero's seed.

...Perhaps, to fulfill their ambitious goals.
...Or perhaps, they just want to have sex with the hero.

The days of being demanded by a beautiful girls begin again...

[Translated from the Official Website]


2021-05-2818+Sex Underworld e Youkoso! - Package Edition
2021-05-2818+Sex Underworld e Youkoso! - Download Edition


  • Vocals
  • ChataOP "Mirai ni Afureru Destiny"
  • Koharu MeuOP "Mirai ni Afureru Destiny"
  • RinOP "Mirai ni Afureru Destiny"

Full character list

Character summary

Sejima SeiyaProtagonist
Andrea Kuki-MurakamiMain character
Voiced by Aoba Ringo
Clarissa OrbasMain character
Voiced by Yukimura Toa
EucalittoMain character
Voiced by Yuika
Fiona NezlickMain character
Voiced by Himari
MuseeMain character
Voiced by Yuuki Honoka
Valmuda LexsabrukaMain character
Voiced by Fantastic
Yupitel MaximusMain character
Voiced by Inemuri Suyako

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