Adapting Chapters 59, 85 and 137 of the manga. An episode featuring Saki and her friends' backstory, a reverse Tamatebako story and a Valentine's Day event. The adaptation of the first story makes significant changes but its core narrative remains intact. The second story receives a faithful 1:1 adaptation, closely following the original source material. The adaptation of the third story stays faithful to the manga, with only minor changes unlike with the first story.