Marshmallow★Imouto★Succubus★

Synopsis

Based on the erotic game by Dwarfsoft. Tsukikawa Keisuke had a vivid erotic dream featuring his little sister Saki. She was still quite innocent, believing that babies come from kissing. In the dream, however, Saki acted nothing like herself—she was experienced and seductive, coming to his bedside and deliberately pulling down his pants to reveal his stiff erection. Her fingers traced up and down his shaft, at first gently, then tightening as she pumped her fist over his hard flesh. When he finally tensed and released, shooting a stream of semen, her mouth was perfectly placed to catch every drop. She swallowed. Keisuke lay frozen on the bed, feeling awake and full of shame. It was that kind of dream—so graphically vivid that he thought it might actually be real. The next morning, Saki greeted Keisuke in her usual cheerful manner. Yes, it had only been a dream. What a relief. Keisuke then learned that his father was home for the first time in a while. His father was a folklorist—a cultural researcher. The timing was no coincidence. His father explained that a demon—a succubus—lurked inside Saki. No... actually, it was more that Saki's true nature was that of a succubus, though she herself didn't know. Keisuke's father shared this secret knowledge only with him. Beware the succubus, for once she tastes the seed of her prey, she craves it uncontrollably. When she transforms in the moonlight, she launches her seduction! Keisuke loves his gentle, simple little sister. But now he is also tempted by the vixen. Keisuke faces a dilemma: which version of Saki will he choose to be with?