Shitoku no Gyokuza

''I kept thinking that I would escape this place some day. This castle is a prison controlled by my father and I am the prisoner. There is no way to break his curse that is eroding my body and mind.''

A game about a young man who wanted nothing but to see the outside world. Eventually he is given five years of freedom, but he knows that he will have to return to the castle some day.
The ending of this story is decided from the beginning, a happy ending is not possible.

[Translated from the official website]