This is a list of unresolved plot threads, sorted by game of introduction.

Trails in the Sky SC

Trails in the Sky the 3rd

Ao no Kiseki

  • The true identity of Arianrhod.
  • The identity of the fifth Anguis, said to be operating in western Erebonia.
  • What happened to KeA's power after she wished it away.
  • The means by which Crossbell regains its independence.

Trails of Cold Steel

Trails of Cold Steel II

  • The method by which Giliath Osborne survived his assassination.
  • The system put in place by the Gnomes and the Hexen Clan around the time of the Great Collapse.
  • The identity of Rean Schwarzer's biological mother.
  • The agreement between Ouroboros and Zephyr to "bring back Zephyr's boss."
  • The nature of McBurn's Divergent Law sword, Angbar.
  • The nature of the two Sept-Terrion of Erebonia.
  • What happened to the Palatinate Knight following its destruction during the War of the Lions.
  • The reason why Testa-Rossa reacts only to the current imperial line, and not just those with Arnor blood.
  • How Orthros Reise Arnor amplified the curse placed on Testa-Rossa.
  • The nature of the two gods spoken of in the Black Records.
  • The reason for the existence of the Shadow Trial and Loa Luciferia.
  • The location of the remaining Divine Knights.
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