[Sena Youtarou] Perverted Onei-chan Ch. 1-3

Sena Youtarou unleashes a tale of forbidden sibling rivalry as the bespectacled Onee-chan commands her glasses-wearing little brother to sate her aching desires. The story spirals into depraved territory when a horned demon girl appears, dragged from another world by the sister herself, who reveals she conjured an entire harem just to share with him. The climax unleashes a wild encounter with the Eldest Sister Tamaki and Third Sister Maya, whose abundant curves and demonic wiles leave the brother utterly overwhelmed in a tangle of overflowing flesh and ecstatic surrender.