The rebel who often serves as the truth-teller, exposing the unit's dysfunction.
Old wounds are reopened, and the "new" version of this person clashes with the family’s frozen memory of them.
Conflict often stems from cycles of behavior passed down, such as a parent's inability to show affection because they never received it.
Long-held revelations (like hidden parentage or past mistakes) act as ticking time bombs that drive character growth when they finally explode.