The two sisters Yuki and Ayame share with you a piece of life in Slice of Venture Origins. The story starts in a train, the sisters travel to meet a piece of their family living in the japanese open country. Before long, they find coincidentally that the entire family has numerous mysteries to stow away. Observers of incestful connections, Yuki and Ayame become increasingly inquisitive! For instance, the most youthful sister appears to be fixated by that DVD showing a young lady adoring sex with creatures… Moreover, a bit of imagination shows up with a succubus residing in the profundities of the family house. In a couple of time, Yuki and Ayame meet many individuals with a daily existence pivoting sex. At last, what these fourteen days among that family will mean for the two young ladies and their lives?