The third Norn9 game.

The game has 3 sections Memoria, Norn 9 Quest and Cantabile. In Memoria, all characters shuffle their groups and there's three scenarios for each boy. In Norn 9 Quest, the characters are reimagined in a fantasy setting. In Cantabile, the girls are turned into small fairies and the player must play minigames to make them return to normal size.