Foreshadowing / Unbreakable Machine-Doll

Unbreakable Machine-Doll has an enormous of foreshadowing related to the story, characters, events, etc throughout the series.

Volume 1 Facing "Cannibal Candy"

• It was first mentioned in volume 1 that the Machine Force brought victory at Trafalgar and Waterloo to the United Kingdom. It made its first appearance in volume 11 where the Machine Force captured the Walpurgis Royal Academy of Machinart under Her Imperial Highness and general Gloria's command.
• It was first described in volume 1 that Charlotte is as beautiful as a fairy. It was mentioned in volume 7 by Griselda that Charlotte has the qualification of using Jin Mastery because since she was a child she can see spirits and has a Guardian Spirit named Lotte. In volume 9, after her reconciliation with Lotte, she gained the power of Jin Mastery which enables her to control spirits (fairies).
• Ravena was first mentioned in volume 1 as "Charlotte's roommate" by Sigmund whom Charlotte pushed out of the window because she got irked when Ravena tried to sneak into the bathroom. In volume 3, Ravena's appearance was used by Cedric (Alice in disguise) to disguise Charlotte as her former roommate, to conceal herself inside the Walpurgis Royal Academy of Machinart.
• When Raishin got his result from his entrance exam in Walpugis Royal Academy of Machinart, he mentioned his rank being 1235 out of 1236th. The person who got 1236th, August, made his first appearance is in volume 7 where he was taking part in the Round Table Talks.
• The Izanagi-style Princess was first mentioned by one of the students who were watching Raishin and Charlotte's battle. The Izanagi-style Princess, Hinowa, made her first appearance in volume 7 where she was taking part in the Round Table Talks.
• Komurasaki was first mentioned by Yaya who relayed the information about Felix's background from the Japanese military. She made her first appearance in volume 2 where she and Raishin were assigned by the Japanese military to infiltrate D-Works.
• The first lord of Belew was first mentioned by Lisette (Eliza in disguise) to defame Charlotte to Raishin as Cannibal Candy. The first lord of Belew, Elaine, made her first appearance in volume 9 as a past character.
• At the beginning of the series, Raishin and Yaya prevented the derailment of the train which was thought to be an "accident". It was revealed by Felix and Lisette (Eliza in disguise) that the train derailment was not an accident but was plotted by someone to kill Raishin. It's still unknown why or who plotted the derailment.
• It was mentioned by Raishin that controlling a military unit is the hallmark of the Akabane clan puppeteers. In volume 10, he used the Setsugetsuka (Yaya, Irori, Komurasaki) simultaneously where he fought Räikkönen for the second time to save Hotaru and prevent Räikkönen from stepping as the new headmaster of Walpurgis Royal Academy of Machinart.
• Oborofuji was first mentioned by Raishin to Shouko who told him that it was a failure. She made her first appearance in volume 9 where she brutally killed the King of the United Kingdom.
• The boy of extremely high social position was mentioned by Yaya to Raishin while they were on the way to save Charlotte from Felix. The boy of extremely high social position, Edmund, made his first appearance in volume 5 where he controlled all the automatons in Liverpool using the Multi-Controller of Evangeline to disrupt the Evening Party.
• Charlotte's father was first mentioned that he was forced to move to France to work as a puppeteer after the downfall of the Belew family. Charlotte's father, Edgar, made his first appearance in volume 8 where he was captured and brought back to England by Edmund.

Volume 2 Facing "Sword Angel"