Yesterday wo Utatte afterwordYesterday o Utatte afterword; イエスタデイをうたって afterword; Sing “Yesterday” For Me afterword; 夏の姉; Natsu no Ane; Summer Elder Sister; Summer Sister; 夏之姐

A compilation collecting the new one-shot which depicts the later developments following the final chapter of the main story, a previously uncollected one-shot, latest interviews with Toume Kei and the director of the anime adaptation, Fujiwara Yoshiyuki, and more.