Kohni Shogun (2000)

The game begins in the year 2001 and the player takes the role of a young high school student and will have to decide what to do each week and how to react to different questions that the girls of his high school will ask him, this part of the game got also some exams that will increase the character stats and also the answers that he gives to the girl will increase or not his stats. But when the player reach a certain part of the game (year 2003 or so) he will find some kind of time hole and will be taken to the medieval japan and the game changed to a first person perspective sound novel, and in this part the player can only choose between different answers to make the history advance in a way or another.