Kōsoku: Yorokobi no Juice

A young man named Keisuke falls asleep on a train and sees a dream: he is having sex with a beautiful woman whom he calls Miyuki, even though he doesn't know this woman in his real life. Afterwards, Keisuke misses the last train to the city and is stranded on a rainy day on a small, uninhabited station. Suddenly, he sees the woman from his dream, and finds out her name is really Miyuki. She tells him and her rich father has built for her and her sisters a European-style mansion nearby, and invites the young man to visit. Keisuke accepts and meets her family, which leads to unexpected and dark erotic adventures...

Kōsoku: Yorokobi no Juice is a typical Japanese-style adventure. It is set entirely in the mansion and has a standard command menu ("Examine", "Talk", "Move") appearing on almost every screen. It is not always necessary to deplete all the commands on screen to trigger an event; also, the player is able, for the most time, to choose which room to visit, which might lead to different events.