E'tude Prologue 揺れ動く心のかたち/ E'tude Prologue: Yureugoku Kokoro no Katachi

A coastal town called "South Aose" surrounded by the sea and mountains is a place where lots of nature still remains. Two normal high school students go to a school in this town. The story starts in the special winter of the 3rd year of school when these two protagonists meet.

The special winter of the 3rd year of school. The students worry about their future paths and the loves they can't be honest about. With many thoughts in their hearts, the final season starts now... What do you desire? Where will you go? What is the shape of a girl or boy's trembling heart? The time when the two protagonists meet again, that is when their story starts to move once more.