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[ENG] [RJ01319586] Little Devil Smartphone ~ Bijin Ero Shimai to Boku no Ichaicha Harem

小悪魔スマホ～美人エロ姉妹とボクのイチャイチャハーレム

Released on November 29, 2025

An english translation of the game Little Devil Smartphone ~ Bijin Ero Shimai to Boku no Ichaicha Harem (小悪魔スマホ～美人エロ姉妹とボクのイチャイチャハーレム)

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Due to his parents’ work circumstances, the protagonist “Hinata” is entrusted to the care of the Yuzuhara family, longtime friends of his parents. There, he is warmly welcomed by the kind older-sister duo, Karin and Shizune, and their mother, Yukana.

Just as his new life is about to begin, a package arrives from his father containing the latest model of smartphone. But the phone is possessed by a strange, cat-like creature that calls itself a “little devil.”

“I want you to do naughty things and gather life energy.”

Overwhelmed by the pressure from the little devil, the protagonist ends up going along with it and begins an erotic life with the sisters using the mysterious “Little Devil Smartphone.”

Thus begins a flirtatious life with the older sisters!

Translation Notes

This game was a bit of a challenge to translate, due to its huge size and the complexity of the game logic. There are a few untranslated passages and inabilities to detect the speaking character that don't impact the ability to enjoy the game, but we'll work to improve these points in our subsequent translations.

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