Kanon

Kanon is a romance visual novel in which the player assumes the role of Yuichi Aizawa. Much of its gameplay is spent on reading the story's narrative and dialogue. Kanon follows a branching plot line with multiple endings, and depending on the decisions that the player makes during the game, the plot will progress in a specific direction. There are five main plot lines that the player will have the chance to experience, one for each of the heroines in the story. (wikipedia.org).