Glass no Destiny

Main heroine Yuri enjoyed a happy childhood. Her father eventually remarries and two families start to live together while Yuri acquiring a new sister. But after Yuri's father death one by one disasters fall upon the family bringing it on the brink of despair.

Game has a very special shojo manga atmosphere and drawing. It's quite shocking to see this cosy world gets buried to the basement. Then nudity comes to the scene and the impact gets even stronger. It's one of the first works oriented at women, but with unusual yuri genre and emphasis on the story.