Sister Efner, falling into Darkness because of the Futanari Succubi

This issue: Sister Efner, falling into Darkness because of the Futanari Succubi is Eromaze's adult game in Unity, finished. Corruption, futa/trans and monster girl drive the story, told from the view of a female protagonist. Latest version: 1.0. Available for Windows (78 MB).

From the box: “Bad Sister Ephnel. She always does things she can't do as a sister. she intended to go out for a night out as usual, but she was caught by futanari Succubus.”