The story focuses on four characters, an 18-year-old boy, his father, his father's girlfriend, and the stepdaughter from the father's girlfriend's previous marriage, who live in the same house. During the game, the player will switch between four characters and will have to choose their lines and actions. Every interaction between characters generates feelings that are expressed on their faces.
The balance between these feelings creates the happiness of each character. A good ending will depend on the happiness of the four.