Kuraibito [Japanese]

Description:

Kotone Takashina, Mami Yuzuki and Yuuri Kanou are three students who belongs to the Mystery Club of their school. One day, after they heard a strange rumor about a ruined place in a forest not too far from the town and decide to see it by curiosity. However, a sudden downpour took the three girls by surprise and instead of finding ruins, the group discovered a mansion whose owner is a man and his twin younger sisters. The bad weather persisted outside and although the three girls were safe from the downpour, they will soon learn about the dreadful secret hidden inside the mansion…