VenusBlood

VenusBlood is a Japanese erotic fantasy visual novel/raising simulation game set in a medieval fantasy world. The player takes on the role of Lenard Landia, a knight who wants to avenge the deaths of his parents who were killed by the king when he was young. After making a deal with demons to gain more power, he sets out to take the first step of his revenge by sullying the princesses Alfina and Euphilia.

The aim of the game is to corrupt the princesses as well as the other prominent female members of the kingdom by strategically implementing training methods which will cause them to become more depraved. The game progresses in increments of days, with each day being split into morning and night phases; the player can select which actions they would like to perform in each phase. A shop can be used to purchase items to assist in this training. The game contains a large amount of erotic scenes, many of which involve the demonic tentacles which Lenard can sprout from his body as a result of his pact with the demons.