ChapterUnlock Requirement
6xComplete chapter 6 with less than 15 units alive.
12xComplete chapter 12 with less than 15 units alive.
17xComplete chapter 12 with less than 15 units alive.
20xComplete chapter 12 with less than 15 units alive.
24xDo not recruit Tiki (or Tiki is dead) and do not possess the Falchion.