E'tude Prologue: Yureugoku Kokoro no Katachi Portable

Set in South Aose, the same city as Little Aid, and sharing its cast of Tenhou High School students. The player selects either Tatsuya Gunji or Hitomi Saeki as the protagonist, then navigates the final stretch of high school life toward a personal goal of their choosing. The direction of the story depends entirely on what the protagonist decides to pursue before graduation.