Title : Little Devil Smartphone ~ My Flirty Harem with Sexy Beautiful Sisters, Koakuma Sumaho ~ Bijin Ero Shimai to Boku no Ichaicha Hāremu
Original Title : 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
Language : Japanese (Official), English (AI TL)
Developer : Circle Meimitei
Released date : 2025-05-28


DESCRIPTION
Due to his parents’ work circumstances, the protagonist “Hinata” (name can be changed) 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!